Although you sound like a communist I will try you some factual data.
Its true we lost the 1962 war...thanks to some "Hindi Chini bhai bhai" from the Gandhi/Nehru family. However you must consider what has happened since then. Do you know anything about the Chola incident or the Nathu LA incident. If not visit this page. http://www.bharat-rakshak.com/LAND-FORCES/Army/History/1960s/Chola.html
Although this article is written by Indians, hence the doubt that it might be biased, the facts can be cross-checked from third party sources.
I think the Ghost of the 1962 war will never leave us. But my fried, failing is not a problem, however giving up after a failure is