[1]   O. W. Awe, Y. Zhao, A. Nzihou, D. P. Minh, and N. Lyczko, “A Review of Biogas Utilisation, Purification and Upgrading Technologies,” Waste and             Biomass Valorization. 2017, doi: 10.1007/s12649-016-9826-4.

[2]   F. R. H. Abdeen, M. Mel, M. S. Jami, S. I. Ihsan, and A. F. Ismail, “A review of chemical absorption of carbon dioxide for biogas upgrading,”                   Chinese Journal of Chemical Engineering. 2016, doi: 10.1016/j.cjche.2016.05.006.

[3]   N. Scarlat, F. Fahl, J. F. Dallemand, F. Monforti, and V. Motola, “A spatial analysis of biogas potential from manure in Europe,” Renew. Sustain.               Energy Rev., 2018, doi: 10.1016/j.rser.2018.06.035.

[4]   S. Achinas, V. Achinas, and G. J. W. Euverink, “A Technological Overview of Biogas Production from Biowaste,” Engineering, 2017, doi:                         10.1016/J.ENG.2017.03.002.

[5]   S. Mittal, E. O. Ahlgren, and P. R. Shukla, “Barriers to biogas dissemination in India: A review,” Energy Policy, 2018, doi:                                             10.1016/j.enpol.2017.10.027.

[6]   P. G. Kougias and I. Angelidaki, “Biogas and its opportunities—A review,” Front. Environ. Sci. Eng., 2018, doi: 10.1007/s11783-018-1037-8.

[7]   I. Ullah Khan et al., “Biogas as a renewable energy fuel – A review of biogas upgrading, utilisation and storage,” Energy Conversion and                       Management. 2017, doi: 10.1016/j.enconman.2017.08.035.

[8]   C. The Phan et al., “Controlling environmental pollution: dynamic role of fiscal decentralization in CO2 emission in Asian economies,” Environ. Sci.         Pollut. Res., 2021, doi: 10.1007/s11356-021-15256-9.

[9]   I. Khan, V. Singh, and A. K. Chaudhary, “Hepatoprotective activity of Pinus roxburghii Sarg. Wood oil against carbon tetrachloride and ethanol               induced hepatotoxicity,” Bangladesh J. Pharmacol., 2012, doi: 10.3329/bjp.v7i2.10230.

[10] A. Kumar, R. K. Jain, P. Yadav, R. N. Chakraborty, B. K. Singh, and B. K. Nayak, “Effect of gamma irradiation on the etching properties of Lexan             and Makrofol-DE polycarbonate plastics,” J. Radioanal. Nucl. Chem., 2013, doi: 10.1007/s10967-012-1830-y.

[11] H. Roubík, J. Mazancová, P. Le Dinh, D. Dinh Van, and J. Banout, “Biogas quality across small-scale biogas plants: A case of central vietnam,”               Energies, 2018, doi: 10.3390/en11071794.

[12] I. Angelidaki et al., “Biogas upgrading and utilization: Current status and perspectives,” Biotechnology Advances. 2018, doi:                                         10.1016/j.biotechadv.2018.01.011.

[13] Y. S. Duksh, B. K. Kaushik, S. Sarkar, and R. Singh, “Performance comparison of carbon nanotube, nickel silicide nanowire and copper VLSI                   interconnects: Perspectives and challenges ahead,” J. Eng. Des. Technol., 2010, doi: 10.1108/17260531011086199.

[14] J. Kaur, A. Kumar, D. V. Rai, and S. K. Tripathi, “Electrical study of ultra high molecular weight polyethylene/multi wall carbon nanotubes                       (UHMWPE/MWCNT) nanocomposite,” 2011, doi: 10.1063/1.3653706.

[15] M. Zafar, S. Kumar, S. Kumar, A. K. Dhiman, and H. S. Park, “Maintenance-energy-dependent dynamics of growth and poly(3-Hydroxybutyrate)             [p(3hb)] production by azohydromonas lata mtcc 2311 using simple and renewable carbon substrates,” Brazilian J. Chem. Eng., 2014, doi:                   10.1590/0104-6632.20140312s00002434.

[16] N. Babu, M. N. Jyothi, U. Shivaram, S. Narayanaswamy, D. V. Rai, and D. VR, “Identification of miRNAs from French bean (Phaseolus vulgaris)               under low nitrate stress,” Turkish J. Biochem., 2014, doi: 10.5505/tjb.2014.20982.

[17] A. Gaurav and V. Gautam, “Identifying the Structural Features of Pyrazolo[4,3-c]Quinoline-3-ones as Inhibitors of Phosphodiesterase 4: An                   Exploratory CoMFA and CoMSIA Study,” Curr. Enzym. Inhib., 2013, doi: 10.2174/1573408011309020004.

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[20] R. Nageshbabu, M. N. Jyothi, N. Sharadamma, D. V. Rai, and V. R. Devaraj, “Computational identification of conserved miRNAs and their potential         targets in French bean (Phaseolus vulgaris),” Res. J. Pharm. Biol. Chem. Sci., 2012.

[21] Q. Sun, H. Li, J. Yan, L. Liu, Z. Yu, and X. Yu, “Selection of appropriate biogas upgrading technology-a review of biogas cleaning, upgrading and           utilisation,” Renewable and Sustainable Energy Reviews. 2015, doi: 10.1016/j.rser.2015.06.029.

[22] P. Chawla, R. Singh, and S. K. Saraf, “Effect of chloro and fluoro groups on the antimicrobial activity of 2,5-disubstituted 4-thiazolidinones: A                 comparative study,” Med. Chem. Res., 2012, doi: 10.1007/s00044-011-9864-1.

[23] R. Solanki, A. K. Chaudhary, and R. Singh, “Effect of leaf extract of Capparis zeylanica Linn. on spatial learning and memory in rats,” J. Nat. Med.,         2012, doi: 10.1007/s11418-012-0626-2.

[24] P. Chawla, R. Singh, and S. K. Saraf, “Syntheses and evaluation of 2,5-disubstituted 4-thiazolidinone analogues as antimicrobial agents,” Med.               Chem. Res., 2012, doi: 10.1007/s00044-011-9730-1.

[25] G. Mishra et al., “Traditional uses, phytochemistry and pharmacological properties of Moringa oleifera plant: An overview,” Der Pharmacia Lettre.           2011.

Associate Professor, Department of Civil Engineering, Vivekananda Global University, Jaipur, India