A useful listing of both USG and Government of India as well as private sector sites that offer a wealth of information for U.S. companies can be found here.
Department of Agriculture
Department of Commerce
International Trade Administration US Patent and Trademark Office Department of Labor
The U.S. Small Business AdministrationU.S. Trade Development Agency
National IPR CenterThe National Intellectual Property Rights Coordination Center (IPR Center) stands at the forefront of the U.S. government’s response to global intellectual property (IP) theft.
Office of the United States Trade Representative (USTR)
Overseas Private Investment Corporation