
When did this happen?
Last update was the "zero-for-zero" trade proposal by India, and that was for Pharmaceuticals and Auto-parts mostly, didn't include Agricultural Produce, and even that the US hadn't approved yet. They did however, eased the tarrifs on a select few food exports of India e.g. Coffee, Tea, Spices and a few Fruits but that still isn't 0% across the board but is in the range of Single Digit % (except maybe for Coffee and Tea which I think is 0% or very near to it)
Edit: I misread, you mentioned US import by India not the other way around

but I still can't find a 0% import duty by India on US agricultural produce.