Gill wiped out "Sikh" Terrorism, count on fingers the number of Sikh countries wo would lobby for them ? Even Srilanka wiped out LTTE and Tamils. What are you trying to say ? India barely escaped UN sanctions back in 93-94.
Everyone knows who does what, but does that stop them from ganging up in the name of religion ? What is the worth of Pakistan ? Why is USA, Russia, China, Gulf everyone lobbying that country, from time to time ever since Independence.
India can do what you want, but then forget, IT Jobs, Foreign remittances, FDI, Manufacturing, Technology etc even trading Oil would be hard, guess what even seeds of important crops like cotton, mustard etc come from outside or we have to pay royalties to them. This is not the days of Soviet Union that they will save us and send us Oil for food.