There are a number of government agencies in India dealing with the wind power sector that may have useful information on their websites. Some of the most useful at both national and state level include:
Centre for Wind Energy Technology (CWET)
Indian Renewable Energy Development Agency (IREDA)
Central Electricity Regulatory Commission (CERC)
State Electricity Commissions
State Electricity Boards
Planning Commission
The Energy and Research Institute
World Institute of Sustainable Energy