Washington, Dec. 11 -- US Trade Representative (USTR) Jamieson Greer on Wednesday described India as "a tough nut to crack" regarding agricultural market access, but said Washington has received its "best-ever offers" from New Delhi under the proposed trade agreement. Speaking at a Senate Appropriations Subcommittee hearing, Greer said India has been forward-leaning in trade talks with the US and has made substantial offers on agricultural market access. His remarks come against the backdrop of a US trade delegation, led by Deputy US Trade Representative Rick Switzer, arriving in India for talks. On Wednesday, Switzer met commerce secretary Rajesh Agrawal. "There is resistance in India to certain row crops and other meats and products. You said they were a difficult nut to crack. I agree 100%. But they have been quite forward leaning," he said. Row crops in the US include corn, soybeans, wheat and cotton. Greer added: "The type of offers they have been talking to us about are some of the best we have received as a country. I think that's a viable alternative market." Greater access to India's agricultural market has been a key US demand since trade negotiations began in February....