If I was to guess watching this getting unfold, Modi is going to use heavy artillery from within the Indian side for a few days to shell whatever he perceives are the "targets" across the border. Heavy artillery has good range, some in excess of 40 km's, so theoretically they can shell for a few days and say "we destroyed our targets" and you may see a few close incursions on the border. But a full scale attack won't be done. Unless some general or air-force commander makes a mistake of crossing into Pakistan. That is their red line.
So the might flex the muscles from distance, use artillery from within India for a few days and life will go back to normal. But the reports aren't of any cool off of anything. In fact, this is the first time since 2002 that the Indian side has ordered evacs out to 50 KM's (estimated range of Pakistani artillery). You only issue such orders when you expect these areas to be hit, and there are war marking flags all across the region. So something is about to go down. I just hope its blowing off steam from distance and not actually attacking or crossing the border. That would for sure turn into a full scale war.