If this is the case, then all the world government would know. The reality is that any slight achieve would be broadcasted from all the major indian media. And the foreign spies can gather the accurate information from the original source. Unfortunately, the Indian beauracracy, which leaded the news, exaggerate the news to the higher ups. As a result, western gov most likely know more about the capabilities of the Indian forces than the Indian president himself.
your are wrong. remember how secretly we developed and tested our first nuclear bomb and even US hadn't got wind of our nuclear bomb till we exploded it and we declared that we have successfully tested nuclear bomb.
we build nuclear bomb with our own talent. we didn't export them from CIA as you are saying.