The more likely explanation is that Pakistan's ISI made the attacks from the Pakistani side (without Pak Army or Musharraf's knowledge) while telling Musharraf that India was making them up.
Pak's ISI intel organization has been as treasonous over there as has our lecherous CIA here in the U.S. with its constant anti-Bush "leaks" and blown ops (e.g. our CIA missed 9/11, blew the whole WMD in Iraq call, missed the fall of the Berlin Wall, etc.).
Wow-wonderful theory.But slight problem with it is that if the ISI made those attacks,how could the Indian media get transcripts of conversations made by Musharraf to his deputy from Beijing in 1999,during the course of the war.
& Why were some of the "ISI fellows" killed in the war having Pakistani army ID cards-namely that of the Northern Light Infantry regiment (Based out of the Northern Areas of Gilgit & Baltistan)-why were those captured accepted back by the Pakistani army???Why were some of those killed given the "Sher E Pakistan",Pakistan's highest gallantary award???
& Finally why were there massive riots in the Northern Areas if these were just ISI personnel??