Sant Jarnailsingh Bhindranwale is the name synonymous with Sikh terrorism. And he was just another Sant in another Gurudwara in Punjab.
Prakashsingh Badal of the Akalidal party was the CM of Punjab. And Indira Gandhi of Congress wanted to unseat him from power and install her party there. She discovered Bhindranwale as a good accomplice to accomplish this task. She courted him popped him up against Badal. There are plenty of cases when Rajiv Gandhi who was still doing his probation in politics sharing dias with Bhindranwale.
Yes, blaming foreigners for our woes is an old game that we Indians are very good at. When the thief is in the ship itself why blame CIA or ISI for what happened in Punjab. After all the hawks in America and Pakis can not be expected to solve our problems but instead would find it easier to fan the fire which has already been ignited by Congress and Indira Gandhi.