Nuclear Weapons - What Was It?

The chinese had attested a nuclear weapon for the first time in 19 64. The americans were obviously concerned about this, so they wanted to spy on it. They entered into some kind of agreement with the government of india that they would place an observing station at the summit of the nandadevi mountain. From there you could see deep into chinese occupied territory,. However, this entire thing was happening right? So all this happened in the 19 sixties. It was all secret. In 19 78, the indian prime minister, moragi thesie, revealed everything. This is what the antan said very strongly us. An t whatever here. I have no idea