Prof. A. K. Singh

Biochemistry Department

Designation: Professor

Qualifications:

  • B.Sc., Gorakhpur University
  • M.Sc., Gorakhpur University
  • Ph.D., University of Hyderabad

Areas of Interest/Specialization: Environmental Microbiology

Experience: Twenty two years

Research Projects: Three completed

Awards : 

  • Marie Curie Fellowship of European Commission
  • Jacob Blaustein Fellowship of Ben Gurion University of Negev                              

Ph. D. Awarded/Supervised: Six

Administrative responsibilities undertaken: 

  • Chairman, Board of Studies in Biochemistry, 
  • Member of Academic Council, 
  • Member NAAC Peer review team

Publications

  1. Singh AK, Sailaja MV and Singh HN (1989) A class of glyphosate selected mutants of the cyanobacterium Nostoc muscorum showing loss of ammonium transport activity (Amt-), heterocyst formation (Het-) and nitrogenase activity (Nif-). FEMS Microbiol Lett 60: 187-192.
  2. Verma SK, Singh AK, Katiyar S and Singh HN (1990) Genetic transformation of glutamine auxotrophy to prototrophy in the cyanobacterium Nostoc muscorum. Arch Microbiol 154: 414-416.
  3. Singh HN, Rai AN, Singh AK, Verma SK, and Katiyar S (1990) Regulation of nitrogen transport, nitrogen metabolism and extracellular production of ammonia in the cyanobacterium Nostoc muscorum. PHYCOS Proc. Natl. Sym.on “Cyanobacterial nitrogen fixation”, New Delhi, India. pp 23-34.
  4. Prakasham R, Singh AK, Singh HN and Rai AN (1991) Inorganic nitrogen regulation of glutamate uptake in the cyanobacterium Nostoc muscorum. Physiol Plantarum 82: 257-260.
  5. Prakasham R, Rai AN, Singh AK and Singh HN (1991) Influence of different forms of nitrogen on uptake of ammonium, glutamate and glutamine in the cyanobacterium Nostoc muscorum. Indian J Biochem Biophys 28: 263-266.
  6. Singh AK, Singh HN and Rai AN (1991) Evidence for the role of glutamine synthetase in the assimilation of amino acids as nitrogen source in the cyanobacterium Nostoc muscorum. Biochem Intl 25: 887-894.
  7. Modi DR, Singh AK, Rao KS, Chakravarty D and Singh HN (1991) Construction of multiple herbicide resistant ammonia excreting strain of cyanobacterium Nostoc muscorum. Biotechnol Lett 13: 793-798.
  8. Singh AK, Verma SK, Singh HN and Rai AN (1992) Glutamate inhibition of aerobic N2 fixation and its regulation by nitrate and ammonium in the cyanobacterium Nostoc muscorum. Indian J Exp Biol 30: 384-387.
  9. Singh AK, Singh RK, Rao KS, Chakravarty D and Singh HN (1992) Mutational analysis of glutamine synthetase response to the ammonium analogue ethylenediamine in the cyanobacterium Nostoc muscorum. FEMS Microbiol Lett 95: 43-48.
  10. Singh HN, Chakravarty D, Rao KS and Singh AK (1993) Vanadium requirement for growth on N2 or nitrate as nitrogen source in the tungsten resistant mutant strain of cyanobacterium Nostoc muscorum. J Basic Microbiol 33: 201-205.
  11. Singh AK, Chakravarty D and Singh HN (1993) Nitrogen control of oxygenic photosynthesis and short term reversible regulation of glutamine synthetase activity in heterocystous diazotrophic cyanobacteria. DAE symposia on photosynthesis and plant molecular biology. J.N. University, New Delhi, India. Pp 59-71.
  12. Singh AK, Chakravarty D, Rao KS and Singh HN (1993) Some cyanobacterial priorities in India context. Proc. Natl. Symp. Cyanobacterial Research-Indian Scene, NFMC-BARD Tiruchirapalli, India. pp 63-71.
  13. Singh AK, Chakravarty D, Singh TPK, Singh S and Singh HN (1996) Evidence for a role of L-proline as salinity protectant in the cyanobacterium Nostoc muscorum. Pl Cell & Environ 19: 490-494.
  14. Singh S, Singh AK, Chakravarty D, Singh TPK and Singh HN (1997) Characteristics of a caesium-resistant (Cs+-R) mutant of the N2-fixing cyanobacterium Nostoc muscorum: dependence on Cs+ or Rb+ for normal diazotrophy and osmotolerance. New Phytol 136: 223-229.
  15. Bhattacharya J, Singh AK, and Rai AN (2002) Nitrogen nutrition in the cyanobacterium Nostoc ANTH, a symbiotic isolate from Anthoceros: Uptake and assimilation of inorganic-N and amino acids. Indian J Biochem Biophys 39: 163-169.
  16. Bhattacharya J, Singh AK, and Rai AN (2002) Isolation and characterization of a chlorate-resistant mutant (ClO-R) of the symbiotic cyanobacterium Nostoc ANTH: Heterocyst formation and N2-fixation in the presence of nitrate, and evidence for separate nitrate and nitrite transport systems. Curr Microbiol 45: 99-104.
  17. Becker S, Singh AK, Postius C, Boeger P and Ernst A (2004) Genetic diversity and distribution of periphytic Synechococcus spp. in biofilms and picoplankton of lake Constance. FEMS Microbiol Ecol 49: 181-190.
  18. Bhattacharya J, Singh AK, Singh RKS and Rai AN (2005) Metronidazole as a specific inhibitor of nitrogenase activity in cyanobacterium Nostoc ANTH. Indian J Microbiol 45: 115-120.
  19. Syiem MB, Singh, AK, Rai AN, Nonibala K, Singh RKS, Adhikari S and Bhattacharjee A (2007) Nitrogen metabolism, artificial association study in two cyanobacterial isolates and assessment of their potential as biofertilizer. Indian J Biotechnol 6: 397-403.
  20. Khumanthem N, Syiem MB, Singh AK and Rai AN (2007) Isolation and characterization of a Mastigocladus species capable of growth, N2 fixation and N-assimilation at elevated temperature. Indian J Microbiol 47 (4): 345-352.
  21. Singh AK, Syiem MB and Adhikari S (2008) CTD – a pioneer tool for Environmental Biotechnology. In: Proceedings of National seminar on Toxicity of chemicals & their hazards with special reference to heavy metals organized by St. Edmund’s college, Shillong, India on 23-24th Oct 2008. Pp. 136-138.
  22. Singh AK, Syiem M, Singh RKS, Adhikari S and Rai AN (2008) A common transport system for methionine, L-methionine-DL-sulfoximine and phosphinothricin (PPT) in the cyanobacterium Nostoc muscorum. Curr Microbiol 56 (5), 436-441.
  23. Akoijam C and Singh AK (2011) Molecular typing and distribution of filamentous heterocystous cyanobacteria isolated from two distinctly located regions in North-Eastern India. World J Microbiol Biotechnol 27 (9): 2187-2194. 
  24. Singh AK, Sherry A, Gray ND, Jones MD, Roeling WFM, Head IM (2011) Dynamics of Alcanivorax spp. in oil contaminated intertidal beach sediments undergoing bioremediation. In: Whitby, C; Skovhus TL, ed. Applied Microbiology and Molecular Biology in Oilfield Systems: Proceedings from the International Symposium on Applied Microbiology and Molecular Biology in Oil Systems 2009. United Kingdom: Springer, 2011, pp.199-209.
  25. Akoijam C, Singh AK and Rai AN (2012) Characterization of free-living Cyanobacterial strains and their competence to colonize rice roots Biol Fertil Soils 48(6): 679-687.
  26. Becker S, Sanchez-Baracaldo P, Singh AK and Hayes P (2012) Spatio-temporal niche partitioning of closely related picocyanobacteria clades and phycocyanin pigment types in Lake Constance (Germany).  FEMS Microbiol Ecol 80 (2): 488-500. 
  27. Ali AE, Singh A, Davenport RJ, Head I and Werner D (2013) Biofuel components change the ecology of bacterial volatile petroleum hydrocarbon degradation in aerobic sandy soil. Environ Pollut 173: 125-132.
  28. Singh AK, Sherry A, Gray ND, Jones DM, Bowler BFJ and Head IM (2014) Kinetic parameters for nutrient enhanced crude oil biodegradation in intertidal marine sediments. Front Microbiol 5, Article 160, 1-13.
  29. Pandey T, Chhetri G, Chinta R, Kumar B, Singh DB, Tripathi T and Singh AK (2015) Functional classification and biochemical characterization of a novel rho class glutathione S – transferase in Synechocystis PCC 6803. FEBS Open Bio 5: 1-7
  30. Akoijam C, James L, Chettri B and Singh AK (2015) Cyanobacterial diversity in hydrocarbon polluted sediments and their possible role in bioremediation. Int Biodeter Biodegr 103: 97-104. 
  31. Pandey T, Singh SK, Chhetri G, Tripathi T and Singh AK (2015) Characterization of a highly pH stable chi-class glutathione S-transferase from Synechocystis PCC 6803. PLoS ONE 10(5): e0126811. doi:10.1371/journal.pone. 0126811.
  32. Mukherjee A, Chettri B, Langpoklakpam JS, Singh AK and Chattopadhyay D (2016) Draft Genome Sequence of Hydrocarbon-Degrading Enterobacter cloacae Strain S1:CND1, Isolated from Crude Oil-Contaminated Soil from the Noonmati Oil Refinery, Guwahati, Assam, India. Genome Announcements 4(3): 1-2.  e00367-16
  33. Mukherjee A, Chettri B, Langpoklakpam JS, Singh AK and Chattopadhyay D (2016) Draft Genome Sequence of Hydrocarbon-Degrading Staphylococcus saprophyticus Strain CNV2, Isolated from Crude Oil-Contaminated Soil from the Noonmati Oil Refinery, Guwahati, Assam, India. Genome Announcements 4(3):  e00370-16. doi:10.1128/genomeA.00370-16
  34. Chettri B, Mukherjee A, Langpoklakpam JS, Chattopadhyay D and Singh A K (2016) Kinetics of Nutrient enhanced crude oil degradation by Pseudomonas aeruginosa AKS1 and Bacillus sp. AKS2 isolated from Guwahati refinery, India. Environ Pollut 216: 548-558 DOI: 10.1016/j.envpol.2016.06.008 
  35. Pandey T, Shukla R, Shukla H, Sonkar A, Tripathi T and Singh AK (2017) A combined biochemical and computational studies of the rho-class glutathione s-transferase sll1545 of Synechocystis PCC 6803. Int J Biol Macromol 94: 378–385
  36. Hadem, IKH, Majaw, T, Singh, AK and Sharma, R (2017) Changing paradigm of biochemical sciences: molecular networks in health and disease. Current Sci 112 (2) 219
  37. Mukherjee, A., Chettri, B., Langpoklakpam, J.S., Basak, P., Prasad, A., Mukherjee, A.K., Bhattacharyya, M., Singh, A.K., & Chattopadhyay, D. (2017) Bioinformatic approaches including predictive metagenomic profiling reveal characteristics of bacterial response to petroleum hydrocarbon contamination in diverse environments. Sci Rep | 7: 1108 | pp 1-22. DOI:10.1038/s41598-017-01126-3
  38. Singh, AK, Chettri, B, Ghosh, A, Chikara, SK & Tripathi T (2017) Draft Genome Sequence of Novosphingobium panipatense Strain P5: ABC, Isolated from Hydrocarbon-Contaminated Soil from Noonmati Refinery, Assam, India. Genome announcements 5 (45), e01265-17
  39. Singh, AK, Chettri, B, Ghosh, A, Chikara, SK & Tripathi T (2017) Draft Genome Sequence of the Hydrocarbon-Degrading Bacterium Acinetobacter pittii Strain ABC Isolated from Noonmati Refinery, Assam, India Genome announcements 5 (44), e01264-17
  40. Chettri B, Singha NA, Mukherjee A, Rai AN, Chattopadhyay D and Singh AK (2019) Hydrocarbon degradation potential and competitive persistence of hydrocarbonoclastic bacterium Acinetobacter pittii strain ABC. Arch Microbiol https://doi.org/10.1007/s00203-019-01687-z
  41. B Chettri, AK Singh (2019) Kinetics of hydrocarbon degradation by a newly isolated heavy metal tolerant bacterium Novosphingobium panipatense P5: ABC. Biores Technol, doi: 10.1016/j.biortech.2019.122190. [Epub ahead of print]

?Book Chapters:

  1. Singh H.N., Singh A.K.and Katiyar S. (1989) Genetic construction of strains of cyanobacterium Nostoc muscorum with potential in biofertilizer technology. In: Pl. Sc. Res. India. (eds. Trivedi M.L., Gill B.S. and Saini S.S.). Today and tomorrow publishers, New Delhi, India. pp 565-571.
  2. Singh A.K., Chakravarty D. and Singh H.N. (1996) Osmoregulation in diazotrophic cyanobacterium Nostoc muscorum. Current research in Plant Sciences Vol II, pp 63-70, eds.T.A. Sarma, S.S. saini, M.L. Trivedi and M.Sharma. Published by Bisen Singh, Mahendra pal Singh, Dehradun, India.
  3. Singh, A. K., Syiem, M.B. and Rai, A.N. (2006) Diversity of cyanobacteria, a molecular approach. In Biotechnological Applications of Cyanobacteria. Pp 1-10. Ed. Kiran Singh. Academic World, 49 B, Briz Enclave, Sunderpur, Varanasi, 221005, India. ISBN:81-903104-0-2
  4. Nonibala Khumanthem, A.N. Rai, A.K. Singh and M.B. Syiem (2006) Physiological and biochemical characterization of a thermophilic diazotrophic cyanobacterium Mastigocladus species. In Ecology, Diversity and conservation of Plants and Ecosystems in India. Pp 354-365.  Eds. H.N. Pandey, S.K. Barik. Regency Publications, New Delhi. ISBN 81-89233-44-0
  5. Rajkumar S. Singh, A. K. Singh, M. B. Syiem and and, A. N. Rai (2006) Colonization of roots of rice and associative N2-fixation by a symbiotic strain of Nostoc. In Ecology, Diversity and conservation of Plants and Ecosystems in India. Pp 366-376. Eds. H.N. Pandey, S.K. Barik. Regency Publications, New Delhi. ISBN 81-89233-44-0
  6. Syiem, M.B., Singh, A.K. and Rai, A.N. (2009) Nitrogen metabolism in cyanobacteria In: Algal Biology and Biotechnology".  JIS Khattar, DP Singh and Gurpreet Kaur (eds) Pp 81-96 Punjabi University, Patiala. ISBN 978-93-80026-19-0 Citation 1
  7. Nonibala Khumanthem, A.K. Singh A.N. Rai, and M.B. Syiem (2009) Methyammonium uptake in the thermophilic cyanobacterium Mastigocladus laminosus In “Biology and Biodiversity of Microalgae” sponsored by Ministry of Environment & Forest. N Anand (Ed). Pp 331-340, Akshara muthra aalayam, Anna Salai, Chennai.
  8. Singh A.K. and Becker S (2009) Analysis of cyanobacterial diversity by denaturing gradient gel electrophoresis (DGGE). In: “Biology and Biodiversity of Microalgae” sponsored by Ministry of Environment & Forest. N Anand (Ed). Pp 341-348, Akshara muthra aalayam, Anna Salai, Chennai.
  9. Singh AK, Sherry A, Gray ND, Jones MD, Roeling WFM, Head IM (2011) How Specific icrobial Communities Benefit the Oil Industry: Dynamics of Alcanivorax spp. in Oil Contaminated Intertidal Beach Sediments Undergoing Bioremediation. In: Whitby, C; Skovhus TL, ed. Applied Microbiology and Molecular Biology in Oilfield Systems: Proceedings from the International Symposium on Applied Microbiology and Molecular Biology in Oil Systems 2009. United Kingdom: Springer, 2011, pp.199-209. Citation 6
  10. Syiem M B, Singh A K and Rai A N (2016) N2-fixing Cyanobacterial Systems as Biofertilizer. Agro-Environmental Sustainability pp 43-61(Springer publication)

Papers presented in Conferences/Seminars:

  1. Boussiba S., Zarka A., Alfalo C. and Singh A.K. (1999) Effect of amiloride on pH regulation in the alkaliphilic, filamentous cyanobacterium Spirulina platensis. Poster presented at 8th International conference on Applied algology, (Sep. 26-Oct.1) at Monticatini (Terme) Italy.
  2. Singh A.K., Zarka A., and Boussiba S. (1996) The existence of a Na+/H+ antiporter in the alkaliphilic cyanobacterium Spirulina platensis. Poster presented at 7th International Conference, Ashmead Resort, Knysna, South Africa (April 16-April 19) for international association of applied algology.
  3. Singh R.K.S., Bhattacharya J., Singh A.K. and Rai A.N. (2003) Evidence for metronidazole as a specific inhibitor of nitrogenase activity in cyanobacterium Nostoc ANTH. Poster presented at Cyanobacterial and plants under environmental stress: Responses, defense strategies and biotechnological prospects (February 25-27, 2003) Banaras Hindu University, Varanasi, India.
  4. Singh R.K.S.,  Singh A.K., Syiem, M.B.and Rai A.N. (2004) Isolation of Nostoc sp. from Anthoceros punctatus and its ability to colonize roots of rice (variety DR-92) presented at International Symposium on Recent Trends in Plant Ecology and Biodiversity Research (May 20-22, 2004) Department of Botany, North Eastern Hill University, Shillong, India.
  5. Khumanthem N.,  Singh A.K., Syiem, M.B.and Rai A.N. (2004) Physiological and biochemical characterization of a thermothilic cyanobacterium Mastigocladus laminosus on exposure to temperature gradient  presented at International Symposium on Recent Trends in Plant Ecology and Biodiversity Research (May 20-22, 2004) Department of Botany, North Eastern Hill University, Shillong, India.
  6. Singh A.K. and Becker S (2005) Analysis of cyanobacterial diversity by denaturing gradient gel electrophoresis (DGGE). In: National symposium on “Biology and biodiversity of freshwater algae” sponsored by Ministry of Environment & Forest, held on Sep 8-9, 2004 at CAS in Botany, University of Madras.
  7. Nonibala K, Singh AK, Syiem MB and Rai AN (2005) Methylammonium uptake in the thermophilic cyanobacterium Mastigocladus laminosus. In: National symposium on “Biology and biodiversity of freshwater algae” sponsored by Ministry of Environment & Forest, held on Sep 8-9, 2004 at CAS in Botany, University of Madras.
  8. Rajkumar Somendrajit Singh, Arvind Kumar Singh, Mayashree Borthakur Syiem and and, Amar Nath Rai (2005) Colonization of roots of rice and associative N2-fixation by a symbiotic strain of Nostoc.
  9. Singh R.K.S., Singh A.K., Syiem, M.B.and Rai A.N. (2005) Colonization of the roots and shoots of rice variety (RCPL-1-87-8) by Nostoc sp. isolated from Anthoceros punctatus. Poster presented at 7th Agricultural Science Congress on Enterpreneurship Development in Agriculture (February 16-18, 2005) Mahatma Phule Krishi Vidyapeeth, Rahuri, Pune, India.
  10. Samrat Adhikari, Singh A.K., Syiem M.B. and Rai A.N. (2006) Evaluation of thallium toxicity to diazotrophic cyanobacteria Nostoc ANTH, Anabaebna cycadae and Nostoc muscorum. Poster presented In: International Conference on Current Trends in Algal Bioresource Utilization, held on 4-6 December, 2006 at Department of Ecology and Environmental Science, Assam University, Silchar, India.
  11. Singh A.K., Becker S, Singh, R.K.S., Adhikari S and Rai A.N. (2006) Molecular fingerprinting of cyanpbacterial strains from rice field and fresh water lake. In: International Conference on Current Trends in Algal Bioresource Utilization, held on 4-6 December, 2006 at Department of Ecology and Environmental Science, Assam University, Silchar, India.
  12. Singh A.K. and Gogoi A. (2007) Molecular characterization of cyanpbacterial strains isolated from rice field and a fresh water lake. In: International Symposium on “Applied Phycology and Environmental Biotechnology” (ISAPE – 2007), held on October 29-31, 2007 at Birla Institute of Technology & Science, Pilani – 333031, Rajsthan, India.
  13. Presented a poster at International Symposium on “Applied Phycology and Environmental Biotechnology” (ISAPE – 2007), held on October 29-31, 2007 at Birla Institute of Technology & Science, Pilani – 333031, Rajsthan, India.
  14. Roshan Choudhury, Samrat Adhikari, Prashant Sharkhel, Mayashree B syiem and  Arvind K Singh, (2008) A study on the effect of ruthenium on the growth of diazotrophic cyanobacterium Anabaena cycadae. In: Proceedings of National seminar on Toxicity of chemicals & their hazards with special reference to heavy metals organized by St. Edmund’s college, Shillong, India on 23-24th Oct 2008. Pp. 168-169.
  15. Attended and presented a poster at International meeting of Molecular Microbial Ecology Group (MMEG) symposium held at University of Warwick UK, on July 3-4, 2008.
  16. Attended and presented a poster titled “Dynamics of Alcanivorax spp in Marine oil Spills” at 2nd International Symposium on Applied Microbiology and Molecular Biology in Oil Systems (ISMOS-2) held at Danish Technological Institute in Aarhus, Denmark from June 17-19, 2009 and presented
  17. Attended one day workshop on “Identification of Sediment Research Challenges” organized at University of Newcastle upon Tyne, UK on 29th May 2009.
  18. Presented a paper titled “Dynamics of Alcanivorax spp. In marine oil spill” at 15th Molecular Microbial Ecology Group meeting (MMEG) at University of Aberdeen held on 29th – 30th July 2009.
  19. Dr. A K Singh attended and presented a talk titled “Hydrocarbon Removal strategies” at International symposium on Phycological Research held at BHU Varanasi on 25th Feb-27th Feb, 2010
  20. A K Singh (2010) Hydrocarbon pollution: response of specific microbial communities to bioremediation strategies at a Seminar held on 26th March, 2010 on “Bioanalytical Techniques” organized by Department of Biochemistry, North Eastern Hill University, Shillong, India under UGC-DRS II programme
  21. Delivered an invited lecture titled “ Hydrocarbon pollution: response of specific microbial communities to bioremediation strategies” in a workshop on ‘Bioinformatics – A computational Approach to Biological Information’ held at ST. Edmond’s College, Shillong, Meghalaya on July 27-July 29, 2010.
  22. Akoijam C and Singh A K (2010) Molecular typing of heterocystous cyanobacteria isolated from Loktak lake, Manipur, India present at UPE Bioscience Seminar “Assessment, Conservation and Value Addition of Biodiversity” held on April 22-23, 2010 at School of Life Sciences, North Eastern Hill University, Shillong-793022, India.
  23. Akoijam C and Singh A K (2010) Molecular typing and distribution of filamentous heterocystous cyanobacteria isolated from Loktak lake, Manipur, India present at 51st annual conference of Association of Microbiologists of India (AMI-2010) held on Dec 14-17, 2010 at Birla Institute of Technology, Mesra, Ranchi-835215, Jarkhand, India
  24. Delevered a lecture titled “Denaturing Gradient Gel Electrophoresis: A method for microbial population analysis” in a training programme on “Techniques in Molecular Biology” under the DBT state level Biotech Hub project organized by Department of Botany, North Eastern Hill University, Shillong from Nov. 17-25, 2011
  25. Akoijam C and Singh A K and Rai A N (2011) Characterization of association competence of free living rice field cyanobacterial strains with rice plants at National symposium on “Biodiversity Assessment, conservation and value addition” held on March 17-19, 2011 at School of Life Sciences (UPE Biosciences), North Eastern Hill University, Shillong-793022, India.
  26. Akoijam C, James L, Bobby C and Singh (2012) Role of cyanobacteria in the bioremediation of hydrocarbon contaminated sediment presented at Lecture series on “Biodiversity: Prospects and Concerns” held on March 14-15, 2012 at School of Life Sciences UPE (Biosciences) programme, North Eastern Hill University, Shillong-793022, India.
  27. Presented an invited paper titled “Population dynamics of Alcanivorax spp in marine sediments undergoing hydrocarbon bioremediation” at the International conference on Climate change, Forecst Resource and Environment (ICCFRE-2011) organized by the Department of Environmental Sciences, University of Kerala, Thiruvananthapuram in collaboration with National Environmentalists association, Ranchi during 9-11 December 2011.
  28. Delivered a lecture on “Molecular Application of Denaturing Gradient Gel Electrophoresis” in a training programme on “Techniques in Molecular Biology” under the DBT state level Biotech Hub project organized by Department of Botany, North Eastern Hill University, Shillong from March
  29. Delivered a guest lecture on “Application of PCR” at a workshop entitled “Hands on Training in Basic Biotechnological Techniques” under sponsorship from Department of Biotechnology, Government of India organized by Institutional Biotech Hub, Department of Biotechnology, St. Edmund’s College from 21st to 25th August, 2012.
  30. Delivered an invited talk titled “Molecular Cloning, expression and enzymatic characterization of glutathione s-transferase from Synechocystis sp PCC 6803” by Tripti Tripathi, Timir Tripathi and AK Singh, at National Conference on “Frontiers in Algology and Algal Biotechnology” [NCFAAB] held at Visva Bharati University, Santiniketan on 15th to 17th November, 2013
  31. Delivered an invited lecture titled “Hydrocarbon Bioremediation” for a refresher course in Disaster Management organized by Department of Adult and Continuing Educationon (NEHU) on 25th Novenber 2013.
  32. Delivered a Plenary talk titled “Characterization of GST from a cyanobacterial strain Synechocystis sp PCC 6803” at a National symposium held on 24th Feb to 26th Feb 2014 at Botany Department, BHU Varanasi.
  33. Presented an invited talk titled “Oil Spill Bioremediation” at 83rd Annual meeting of the Society of Biological Chemists (India) and symposium on Evolution: Molecules to Life” held on Dec 18-21, 2014 at KIIT University, Bhubaneswar.
  34. Delivered a lecture on Microbial pathogenesis in DBT sponsored summer training organized by Botany Department, NEHU.
  35. Delivered an invited talk titled “Bacterial abundance and Dynamics in Crude Oil Contaminated Soil Sediments Undergoing Bioremediation” and chaired a session during the National Conference on Basic and Applied Researches in Plants and Microbes held on November 03-05, 2016 at Department of Botany, Punjabi University, Patiala – 147002.

Any other:

  1. Appointed as Editorial Board member of the Journal of Advances in soil science from April 6, 2017-April 6, 2019.
  2. Have reviewed many research papers submitted to Springer and Elsevier etc.
  3. Invited as Judge to adjudicate young scientist award of MPCST held at RD University, Jabalpur, India.