The point I wanted to make was that not every country can grow everything in plenty.... Otherwise there will be no need for trade..They grow a heck of a lot of other things though, such as flowers for example. One of the largest exporters of tulips and other flowers....also dairy industry, chocolate, candy and baked goods.
Pakistan, India and Bangladesh have cotton, wheat, rice, sugarcane, chilies, mangoes, bananas, oranges.. and we are among the top ten producers of certain crops.
If during one particular year, one country is short of onions, or tomatoes or potatoes, it doesn't matter.
The table below shows 2012 stats on milk production and dairy cow population.. Pakistan and Bangladesh are appearing in this list..
I think I have now made my point clear..