Adding an audio track to an existing video file takes hardly 15-20 minutes for someone who's good at editing/mixing.
Maybe one must not jump to conclusions?
There is live transmission on multiple channels - so if this audio was real, then it's not difficult to establish.
Also: it proves that the bjpee had "absolutely nothing" to with orchestrating the attack. Neither modi, shah, doval nor yogi are so dumb to have someone shout JSR.
______ are so devious that they could have set up this whole thing and then have the gunmen shout it in order to create further problems for the law & order - not just in UP but in other places as well.
They're called "tukde-tukde" gang for a reason.