Read itYou are making tall claims in an era where statistics were not collected properly.
*Quantity* is one word. Value is another. What exact agricultural products did Bengal produce that the Europeans wanted ? Are you suggesting the British took the rice grown in Bengal to United Kingdom ?
You are using the Bengal presidency to include areas that are not a part of pre-British Bengal

Forget Bezos & Musk, The Jagat Seths Were Once India’s Richest Family With Over 1000 Billion Pounds
Let's talk about the 'Banker of the World.'