National and international committees:

2004-05 National Curriculum Framework: National Focus Group on the Teaching of Science
Science and arts curriculum committees of the National Council of Educational Research and Training (NCERT)
1993-2003 International Contributing Editor for South Asia for Science Education (John Wiley)
2005-2006 Inter-Academy Panel (IAP) Working Group on Evaluation of Inquiry-Based Science Education Programs
2006-08 International Oversight Committee for the Evaluation of Inquiry-Based Science Education Programs
Reviewer for the International Journal of Science Education (Taylor and Francis) and European Science Education Research Association (ESERA)