India, Dec. 10 -- US Trade Representative Jamieson Greer on Wednesday said that India remains a "tough nut to crack" in trade negotiations, but that Washington has received the "best offer ever" from New Delhi so far. Greer made the remarks while discussing the ongoing efforts to diversify US export markets, particularly for agricultural products.

Greer said that a US delegation is currently in India holding talks on key trade issues.''I have a team over there right now as we speak in New Delhi working on this. There's resistance in India to certain row crops and other meats and products," he said, adding that, India "is very difficult enough to crack".

While Greer agreed with the difficult, he also said that India has been "quite forwa...