When the Khalistan movement burst into prominence in Punjab, the government at first sent law-and-order hardliners to the troubled state; Arjun Singh and then Siddhartha Shankar Ray both served as Governors of that state while it was under President's Rule.
As the Khalistan movement gained traction in Punjab, the government deployed hardline law enforcement officials to address the situation.  Arjun Singh and later Siddhartha Shankar Ray were appointed governors of the state while it was under presidential rule.