India has no issues doing trade with Pakistan. India does massive trade with China despite border conflict.You can travel 100 years into the future and those 2 countries will still be the same. A bunch of idiots who don't want to change while the white and this time even yellow boys selling weapons to both sides.
India also wants road-rail-transit connectivity through Pakistan to Afghanistan and beyond.
SAARC connectivity was restricted to BBIN because Pakistan did not want to be on-board.