Nehru messed up the issues. His diplomatic failures have been catastrophically disastrous for India.This fact must be recognised. 

The new generation should be made aware of the historic blunders committed by our leaders during the forties & fifties.

At the same time I must say that only leader who showed some determination and courage on international plane despite contemporary adversaries like the USA was none other than Indira Gandhi. Of course she had scant respect for democratic institutions. She has been the only mard (manly gallant) prime minister this country has ever produced.