India and the United States are closing in on a trade deal, Commerce Minister Piyush Goyal said on Tuesday, after two years of negotiations. India is seeking concessions for generic drugs it exports to the United States in return for opening its dairy markets and slashing tariffs on farm goods as the two sides seek to clinch a new trade accord, three sources told Reuters. They have been negotiating a limited trade pact aimed also at restoring zero tariffs on a range of Indian exports to the United States under its Generalised System of Preferences (GSP), from which the Trump administration withdrew last year, citing lack of reciprocal access to Indian markets.