Google Scholar ID
Scopus ID
Research Gate

• Biofuel Production and Upgradation
• Alternative Vehicular Fuels
• Combustion and Pollution
• Waste and Wastewater Valorization for Sustainable Energy and Materials
• Life Cycle Analysis
• Environmental Impact Assessment

• 2023 -Present; Junior Scientist, Traffic Engineering and Safety Division, KSCSTE-NATPAC
• 2022-2023; Senior Research Fellow, Indian Institute of Technology Delhi, New Delhi, India
• 2019-2022; Junior Research Fellow, Indian Institute of Technology Delhi, New Delhi, India
• 2018-2019; Junior Research Fellow, Jamia Millia Islamia (A Central University), New Delhi, India

• Sustainability Assessment of Intermediate Public Transport using integrated MCDM Approach

• Isha, A., D’Silva, T. C., Chandra, R., Subbarao, P. M. V., & Vijay, V. K. (2025). Techno-economics, energy and environmental (T-3E) assessment of an onsite biogas plant treating kitchen wastes stabilized using protein-rich additives in an Indian urban scenario. Process Safety and Environmental Protection, 108024. https://doi.org/10.1016/j.psep.2025.108024
• Isha, A., D’Silva, T. C., Chandra, R., Subbarao, P. M., & Vijay, V. K. (2025). Combined Strategy to Treat Kitchen Waste and Greywater Streams Using Anaerobic Digestion for Bioenergy Recovery in an Institutional Campus Community in India. Journal of The Institution of Engineers (India): Series A, 106(4), 1325-1333. https://doi.org/10.1007/s40030-025-00924-7
• Kumar, S., D'Silva, T. C., Chandra, R., Malik, A., Vijay, V. K., & Misra, A. (2025). Integration of hydrothermal pretreatment and anaerobic co-digestion strategies to improve the biomethane yield from rice straw and waste algal biomass. Renewable Energy, 124233. https://doi.org/10.1016/j.renene.2025.124233
• D’Silva, T. C., Horváth-Gönczi, N. N., Ribár, O., Khan, S. A., Chandra, R., Vijay, V. K., ... & Semple, K. T. (2025). Effect of supplementing commercially available and locally prepared carbon materials in anaerobic digestion: focusing on enhanced performance and potential mechanisms. Energy, Ecology and Environment, 1-31. https://doi.org/10.1007/s40974-025-00362-y
• Kumar, S., D’Silva, T. C., Chandra, R., Malik, A., Kumar Vijay, V., & Misra, A. (2024). Impact of hydrothermal pretreatment at different temperatures on biomethane yield in anaerobic digestion of rice husk. Biomass Conversion and Biorefinery, 1-16. https://doi.org/10.1007/s13399-024-06106-y
• Hasan, B., D’Silva, T. C., Gaur, R. Z., Singh, G., & Khan, A. A. (2024). Evaluating biogas potential of organic fraction of wholesale market wastes in New Delhi, India: anaerobic co-digestion with sewage sludge and cattle manure. Energy, Ecology and Environment, 9(4), 365-381. https://doi.org/10.1007/s40974-023-00310-8
• D’ Silva, T.C., Khan, S.A., Kumar, S., Kumar, D., Isha, A., Deb, S., Yadav, S., Illathukandy, B., Chandra, R., Vijay, V.K., Subbarao, P.M.V., Bagi, Z., Kovacs, K.L., Yu, L., Gandhi, B.P., Semple, K.T. (2023). “Biohydrogen production through dark fermentation from waste biomass: Current status and future perspectives on biorefinery development”. Fuel, 350, 128842. https://doi.org/10.1016/j.fuel.2023.128842
• Subbarao, P.M.V., D’ Silva, T.C.,Adlak, K., Kumar, S., Chandra, R., Vijay, V.K., (2023). “Anaerobic digestion as a sustainable technology for efficiently utilizing biomass in the context of carbon neutrality and circular economy”, Environ. Res., 234, 116286. https://doi.org/10.1016/j.envres.2023.116286
• D’ Silva, T.C., Isha, A., Verma, S., Shirsath, G., Chandra, R., Vijay, V.K., Subbarao, P.M.V., Kovács, K.L., (2022). “Anaerobic co-digestion of dry fallen leaves, fruit/vegetable wastes and cow dung without an active inoculum – A biomethane potential study”. Bioresour. Technol. Rep. 15, 101189. https://doi.org/10.1016/j.biteb.2022.101189
• Chaudhary, V.P., Chandra, R., Denis, D.M., D’ Silva, T.C., Isha, A., (2022). “Agri-biomass based bio-energy supply model: An inclusive sustainable and circular economy approach for self-resilient rural India”. Biofuel BioprodBioref. 16(5), 1284-1296. https://doi.org/10.1002/bbb.2373
• D’ Silva, T.C., Verma, S., Magdaline, R.M., Chandra, R., Khan, A.A., (2022). “Environmental resilience and sustainability through green technologies: A case evidence from coastal rural India”. Environ. Eng. Res. 27(5):210262. https://doi.org/10.4491/eer.2021.262
• D’ Silva, T.C., Ahmed, M., Nazim, M., Mirza, M.W., Arafat, T., Ashraf, M.A., Hasan, M.N., Gaur, R.Z., Tyagi, V.K., Mutiyar, P.K., Lew, R.G., Lew, B., Khan, A.A., (2021). “Performance and Sustainability Assessment of Full-scale Sewage Treatment Plants in Northern India using multiple-criteria decision-making methods”, J. Environ. Eng. 147(12), 04021070-1-11. https://doi.org/10.1061/(ASCE)EE.1943-7870.0001941
• Kumar, S., D’ Silva, T.C., Chandra, R., Malik, A., Vijay, V.K., Misra, A., (2021). “Strategies for boosting biomethane production from rice straw: a systematic review”. Bioresour. Technol. Rep. 15, 100813. https://doi.org/10.1016/j.biteb.2021.100813
• Khan, S.A., D’ Silva, T.C., Kumar, S., Chandra, R., Vijay, V.K., Misra, A., (2021). “Mutually trading-off biogas and biochar sectors for broadening biomethane applications: A comprehensive review”, J. Clean. Prod. 318,128593. https://doi.org/10.1016/j.jclepro.2021.128593
• D’ Silva, T.C., Isha, A., Chandra, R., Vijay, V.K., Subbarao, P.M.V., Kumar, R., Chaudhary, V.P., Singh, H., Khan, A.A., Tyagi, V.K., Kovács, K., (2021). “Enhancing methane production in anaerobic digestion through hydrogen assisted pathways-A state-of-the-art review”. Renew. Sustain. Energy Rev. 151: 111536. https://doi.org/10.1016/j.rser.2021.111536
• Isha, A., D’ Silva, T.C., Subbarao, P.M.V., Chandra, R., Vijay, V.K., (2021). “Stabilization of single-stage anaerobic digestion of acidic kitchen waste streams using protein-rich additives: Study of process performance, kinetic modelling and energy balance”, Bioresour. Technol., 337, 125331. https://doi.org/10.1016/j.biortech.2021.125331
• Mirza, M.W., D’ Silva, T.C., Ghani, K.M., Afsar, S.S., Gaur, R.Z., Mutiyar, P.K., Khan, A.A., Diamantis, V., Lew, B., (2020). “Cultivation of Anaerobic Ammonium Oxidizing Bacteria (AnAOB) using different sewage sludge inoculums: process performance and microbial community analysis”, J. Chem. Technol. Biotechnol., 96(2), 454-464. https://doi.org/10.1002/jctb.6560

• D’Silva, T.C., (2026). Sustainability Assessment of Intermediate Public Transport in Kerala using integrated FAHP-PROMETHEE Approach, 30 January - 2nd February 2026, 38th Kerala Science Congress, St. Albert’s College, Kochi, India.
• V. Ektha, D’Silva, T.C., Pramada, S.K., Bhuvaneshwari, S. (2026). Characterization of biochar derived from heterogenous fallen leaves for environmental applications, 30 January - 2nd February 2026, 38th Kerala Science Congress, St. Albert’s College, Kochi, India.
• V. Ektha, D’Silva, T.C., Pramada, S.K., Bhuvaneshwari, S. (2026). Two-Stage Anaerobic Digestion: Current Status, Technological Advances, and Future Directions, 21-22 January 2026, National Symposium on Innovation in Water and Wastewater Treatment for Sustainable Transition, KSCSTE-CWRDM, Calicut, India.
• D’ Silva, T.C., Chandra, R., Vijay, V.K., Kovács, K.L., (2024). Integrating hydrothermal carbonization can improve the “carbon-neutral” characteristics of anaerobic digestion – Observations from a semi-continuous reactor treating simulated acidogenic effluents”, 31st Swadeshi Science Congress, 7th – 9th November 2024, ICAR-CIFT, Kochi, India.
• D’ Silva, T.C., Chandra, R., Vijay, V.K., Kovács, K.L., (2023). Selection of suitable alternative feedstock for localized biogas production in rural India”, Shanghai Cooperation Organization – Young Scientist Conclave (SCO-YSC 2022), 6th – 10th February 2023, Jawaharlal Nehru Centre for Advanced Scientific Research, Bengaluru, India.
• D’ Silva, T.C., Verma, S., Chandra, R., Vijay, V.K., (2022). “Performance of anaerobic co-digestion plant treating heterogenous fruit, vegetable wastes and fallen tree leaves at declining mesophilic temperatures”, National Conference on Recent Advances in Chemical Engineering Towards Sustainable Future (RACES) 2022, 17th – 18th February 2022, National Institute of Technology Surat, Gujarat, India. (Best Oral Presentation Paper Award)
• Rayaz, M., Ahmed, M., Mirza, M.W., Hasan, B, D' Silva, T.C., Nazim, M, Arafat, T, Gaur, R.Z., Hasan, M.N., Ansari, M.I., Khan, A.A., (2020). “Performance assessment of full-scale STPs based on different treatment technologies in India”, DAAL 14 Conference, October 22 – November 12, Chile, Brazil, Mexico, and Uruguay.
• Mirza, M.W., de Freitas, P.S.L, D’ Silva, T.C., Ahmed, I., Gaur, R.Z., Khan, A.A., Lew, B., (2020). “The Optimization of Partial Nitrification for Achieving the Post Treatment of Anaerobically Treated Effluents Using Anammox Process”, Nutrient Removal and Recovery (NRR) 2020, Aalto University, September 1-3, Finland.
• Ahmad, I., Mirza, M.W., D’ Silva, T.C., Nazim, M., Ahsan, N., Khan, A.A., (2019). “Options of Fast Start-Up of Partial Nitrification: Integration of Anammox with Mainstream Treatment”, ETAHBS-2019, Pusa Institute of Technology, New Delhi, India, November 17-18.
• D’ Silva, T.C., Rajeevan, K., Sumesh, R.K, Resmi, E.A., Unnikrishnan, C.K., (2019). “Contribution of Arabian Sea on Air Pollution: A Study Over Thiruvananthapuram Coastal Region”, International Conference on Atmospheric Chemistry and Physics in Highly Polluted Environment, CIAAS, IIT Delhi, India, March 22-24.
• D’ Silva, T.C., Khan, S.A., Chandra, R., Vijay, V.K., Kovács, K.L., (2022). Effect of pyrochar and hydrochar on the anaerobic co-digestion of dry fallen leaves, fruit/vegetable wastes and cow dung – A biomethane potential study”, International Conference on Biotechnology for Sustainable Bioresources and Bioeconomy (BSBB-2022), 7th – 10th December 2022, Indian Institute of Technology Guwahati, Assam, India.
• Khan, A.A., D’ Silva, T.C., Mirza, M. W., Ahmed, M., Gaur, R.Z., Lew, B., Diamantis, V., (2020). “Start-up and process performance of Anammox continuous reactor treating low-strength wastewater using non-acclimatized sludge”, DAAL 14 Conference, October 22 – November12, Chile, Brazil, Mexico and Uruguay.
• D’ Silva, T.C., Mirza, M.W, Gaur, R.Z, Hasan, B., Altaf, M., Diamantis, B., Lew, B., Khan, A.A., (2019). “Enrichment and Performance of Anammox Bacteria using different inocula at Mesophilic Temperature”, AD-16 Conference, IWA, TU Delft, Netherlands, June 23-27.
• D’ Silva, T.C., Rajeevan, K., Sumesh, R.K, Resmi, E.A., Unnikrishnan, C.K., (2018). “Influence of atmosphere and ocean on PM concentration and health effects over southern tip of India”, 3rd IICAQM, IIT Madras, India, December 6-7.
• D’ Silva, T.C., Priydarsini, K., Sil, A., (2018). “Issues in Solid Waste Management in Rural India: A Case Study”, 5thGreHeC Conference, Green Health Foundation, Nehru Science Centre, Mumbai, India, September 6.

• Nil

1. D’Silva, T. C., Vijayan, S., Deb, S., & Chandra, R. (2024). Global Climate Change Crisis: Lessons Learned from COVID-19 in the Context of Solid Waste Management and Allied Sectors in India. In Climate Crisis, Social Responses and Sustainability: Socio-ecological Study on Global Perspectives (pp. 175-190). Cham: Springer Nature Switzerland. https://doi.org/10.1007/978-3-031-58261-5_8
2. Isha, A., Jha, B., D’ Silva, T.C., Kumar, S., Khan, S.A., Kumar, D., Chandra, R., Vijay, V.K. (2023). “Role of Additives on Anaerobic Digestion, Biomethane Generation, and Stabilization of Process Parameters”. Chapter 4, In: Biofuel Extraction Techniques: Biofuels, Solar, and Other Technologies, John Wiley & Sons. https://doi.org/10.1002/9781119829522.ch4
3. D’ Silva, T.C., Isha, A., Kumar, S., Khan, S.A., Kumar, D., Chandra, R., Vijay, V.K. (2023). “An Overview on Established and Emerging Biogas Upgradation Systems for Improving Biomethane Quality”. Chapter 5, In: Biofuel Extraction Techniques: Biofuels, Solar, and Other Technologies, John Wiley & Sons. https://doi.org/10.1002/9781119829522.ch5
4.  Kumar, S., D’ Silva, T.C., Kumar, D., Isha, A., Khan, S.A., Chandra, R., Malik, A.M., Vijay, V.K. (2023). “Valorization of By-Products Produced During the Extraction and Purification of Biofuels”. Chapter 11, In: Biofuel Extraction Techniques: Biofuels, Solar, and Other Technologies, John Wiley & Sons. https://doi.org/10.1002/9781119829522.ch11
5.  Khan, S.A., Kumar, D., Kumar, S., Isha, A., D’ Silva, T.C., Chandra, R.C., Vijay, V.K. (2023). “Biofuel Applications: Quality Control and Assurance, Techno-Economics and Environmental Sustainability”. Chapter 13, In: Biofuel Extraction Techniques: Biofuels, Solar, and Other Technologies, John Wiley & Sons. https://doi.org/10.1002/9781119829522.ch13
6.  Khan, S.A., Kumar, D., Kumar, S., Isha, A., D’ Silva, T.C., Chandra, R., Vijay, V.K., (2022). “Recent advances in fast pyrolysis and oil up-gradation”. Chapter 10, In: Thermochemical and Catalytic Conversion Technologies for Future Biorefineries (Vol. I). Springer Nature. https://doi.org/10.1007/978-981-19-4312-6_10
7.  Gaur, R.Z., Magray, O., D’ Silva, T.C, Hasan, M.N, Khan, A.A, Tyagi, V.K. (2019). “Micro-aerobic Technologies for UASB effluent polishing: An Overview”, Chapter 4, In: Post-treatment of Anaerobically treated effluents, IWA Publishing, Netherlands. https://doi.org/10.2166/9781780409740_0057

• Member of Vehicle Committee
• Member of Engineering Committee

1.  5-days Professional Training Programme on ENVI-met for Urban Climate Resilience conducted by the Centre of Excellence in Urban Planning & Design, NIT Calicut, on 9 – 13 June, 2025.
2. AICTE-funded 6-day Faculty Development Programme on "Sustainable Carbon-Free Technologies for Hydrogen Generation and Storage” conducted by the Department of Mechanical Engineering, NIT Trichy, on 26th February 2024 - 1st March 2024.
3. Indian Environment Congress on Sustainable Waste Management – Challenges, Opportunities and Innovations, Mascot Hotel, Thiruvananthapuram (11th to 13th July 2023)
4.  TEQIP-III Webinar on Multi-Scale Computational Fluid Dynamics: Fundamentals and Applications, Dr. B.R. Ambedkar National Institute of Technology Jalandhar, Punjab (21 – 25 Sept 2020)
5.  TEQIP-III Webinar on Waste to Energy, Centre for Environment, Institute of Science and Technology, Jawaharlal Nehru Technological University, Hyderabad (JNTUH), Kukatpally, Hyderabad (19 –     21 Sept 2020)
6.  TEQIP-III Sponsored Online Short-Term Course on Recent Trends in Renewable Energy Systems and Their Control (RESC-2020), Dr. B.R. Ambedkar National Institute of Technology Jalandhar,            Punjab (14 -18 Sept 2020)
7.  TEQIP-III Sponsored One Week Online Short-Term Training Program on “Computational Fluid Dynamics”, Department of Mechanical Engineering, NIT Srinagar, Jammu & Kashmir (17 – 22 Sept         2020)
8.  TEQIP-III Webinar on Bioenergy: Transition and Technology, Dr. B.R. Ambedkar National Institute of Technology Jalandhar, Punjab (03 July 2020)
9.  National Training Programme on Biogas Production, Purification and Power Generation (04 – 05 March 2020)
10.  Solar Installation & Cable Techniques, Renewable Energy Centre, Mithradham, Aluva (26 – 30 Oct 2015)

• Webinar on “Our Power, Our Planet: Innovations in EV Charging and Clean Mobility", organized by KSCSTE-NATPAC in association with IEEE Estonia Section, held on 29^th April 2025.

1. Young Scientist Award (Engineering & Technology) at 31^st Swadeshi Science Congress held at ICAR-CIFT, Kochi (November 2024)
2. Commonwealth Split-site Ph.D. Fellowship 2023-24 (UK)
3.  SCO-DST Young Scientist 2023, JNCASR, Bengaluru
4.  Fulbright-Kalam Climate Ph.D. Fellowship 2023-24 (USA) (Unexecuted)
5.  Best Oral Presentation Award 2022, NIT Surat, Gujarat
6.  Rotary Youth Leadership Award 2015, Rotary Club, Kazhakkuttom, Thiruvananthapuram

• International Water Association (Membership ID: 1622575)

• M.Tech. Thesis
• B.Tech. Project
• M.Sc. (x 1)
• Internship (x 1)

• Delivered a talk on “Biomass Valorization for Sustainable Biohydrogen Production” in a six-day Faculty Development Programme (FDP) on "Green Hydrogen – A Sustainable Energy Solution" organized jointly by the Department of Electrical Engineering and the Department of Mechanical Engineering, College of Engineering Trivandrum, June 30^th to July 5^th, 2025.
• Delivered a talk on “Potential of Organic Fraction of Municipal Solid Wastes in India” in the collaborative online seminar conducted by UKIERI-DST funded COSTARMSW project and Unnat Bharat Abhiyaan on 16th March 2021 at IIT Delhi, New Delhi, India.

1.  Coordinator (Travel and Accommodation) – Workshop on Design and Development of Micro-scale Rural Energy Systems organized by CRDT, IIT Delhi, New Delhi, India (March 2023).
2.  Assistant Coordinator (Finance and Itinerary Planning) – International Conference on SMART CITIES: Opportunities & Challenges organized by Department of Civil Engineering, Jamia Millia Islamia, New Delhi, India (March 2019).