Story: https://www.firstpost.com/india/how-security-arrangement-for-narendra-modis-punjab-visit-was-nothing-short-of-an-unmitigated-disaster-10263041.html

This never happens. Modi is one of the most protected world leaders.

There are always 3 routes prepared, and PM will use any one of them. The one he used was leaked, 'protestors' swarmed there, and the police didn't intervene (were seen having tea with protestors). Modi was pinned from both ends on a bridge for 15 mins.

Obviously the police were ordered by the state government to stand down. The Chief Minister of the State, the Chief Secretary and Police chief were supposed to be in the convoy, but bounced last moment. But since no attempt was made to kill Modi, I think this was a warning shot, probably the last warning he will receive before Feb 2022.

Recently, his Chief of Defence Staff was killed in a helicopter 'malfunction': https://www.news9live.com/india/chopper-was-flying-low-and-hit-trees-eyewitnesses-recall-chopper-crash-that-killed-cds-bipin-rawat-139200