Indira made one bad, expensive decision re the Golden Temple. How hard would it have been to simply lay siege to the place for an extended time without storming

Indira made one bad, expensive decision re the Golden Temple. How hard would it have been to simply lay siege to the place for an extended time without storming in? In many other ways, she was a great democratic force. One costly decision justifiably cost her life - and ironically, same thing happened to her son (Rajiv however was a much less competent ruler).