"Modelling Economic Efficiency of Renewable Energy Policies: A Multi-State Model for India", (with Sundeep Chowdary), World Renewable Energy Conference, Oct 17-19, Bali 2011.

"Analysing Efficiency of Electric Distribution Utilities in India: A Data Envelopment Analysis" (with Dilip Kumar Pandey), IAEE International Conference, Stockholm 19-23 June, 2011.

"Directions for Effective Regulation for Renewable Energy: An Analysis of Renewable Energy Certificates", India Energy Security Summit: Energy Security for a sustainable future, 3-4 March 2011, New Delhi, IPPAI.

“Market-Based Financing for Clean Energy Projects: An Assessment of Renewable Energy Certificates and Energy Saving Certificates”, Asia Clean Energy Forum, 20-24 June 2011, ADB, Manila.

“Implementing Renewable Energy Certificates in India: Economic Analysis for a Proposed Regulatory Approach”, International Conference on Infrastructure Finance, IIT Kharagpur, June 3-5, 2010

"Nationally Tradable Renewable Energy Credits for Renewable Portfolio Obligation in the Indian Power Sector", SEE Conference Proceedings, Bangkok., 21-23 Nov.2006, ISBN 974-456-653-1 (Book Chapter).

"Interfuel Substitution inducing Pricing Policies for Environmentally Sustainable Development" in TERI and GTZ (1997) “Energy and economic growth: is sustainable growth possible?”, Proceedings of 20th International Association for Energy Economics (IAEE) conference held at New Delhi on 22nd-24th Jan. 1997, pp 413-426, ISBN: 81-85419-24-8. (Book Chapter).

"Towards A Market for Electricity and Consumer Choice in the Indian Power Sector”, IAEE International Conference, 7-10 June, 2006, Potsdam/Berlin, Germany.

"Factors Affecting Energy Efficiency in Indian Pulp & Paper Industry: An Econometric Analysis (with Vinay Gupta)" International Conference on Energy for Sustainable Development: Issues and Prospect for Asia, March 1-3, 2006, Phuket, Thailand.

"Barriers to Adoption of Clean and Efficient Technologies in the Indian Power Sector: An Analysis using AHP", (Co-authored with S C Srivastava and Ram Shreshta), Conference on Better Air Quality, Indonesia, 13-15 Dec., 2006

"Towards a Competitive Market for Electricity and Consumer Choice in Indian Power Sector" International Conference on "Power Market Development in India: Reflections from International Experience" to be organised at IIT Kanpur from April 19-21, 2005 at IIT Kanpur.

"Inter-fuel Substitution as a tool for managing energy demand and mitigating CO2 emissions in Indian Industry" Presented at 10th Global Warming Conference held at Yamanashi, Japan on 6th-8th May 1999.