Is there any evidence that the english forced the indians to trade their grain?

AS FAR AS I KNOW, NO.

Explanation: First thing you need to know is that History can be treacherous, confusing and most of all mistaken. Despite of what our History books might say, alll the statements could work as a broken phone. Information that passed from mouth to mouth, and it´s almost a fact that someone twisted it.

But with a basis of remarkable Historical records, the answer is no. There´s no evidence.