How can I get the history of GDP of Pakistan.?

Answer 1

Try searching the Library of Congress, country studies, or The IBRD (World Bank), both dot Org. They should have it. Otherwise, you can just go look up these books, the country studies, Pakistan, in the Government Printing Office, in hard copy. There is a chapter dedicated for "the Economy." Search for a copy on the web.

Answer 2

I would suggest the World Bank.

http://devdata.worldbank.org/external/CPProfile.asp?PTYPE=CP&CCODE=PAK