Both accidents involved the 105 mm field guns of Army and BSF, whose ammunition is manufactured by the Ordnance Factory Board.
your sure? anyway, i guess it was 1978 something (parakhram).... most died during de-mining... I guess those mines were faulty too. Once laid, then explosion is the only way.Never forget when India lost over 800 men during the 2002 standoff without Pakistan firing a single bullet. Masterful execution