The Kargil War, also known as the Kargil conflict, was an armed conflict fought between India and Pakistan from May to July 1999 in the Kargil district of Kashmir and elsewhere along the Line of Control (LoC). In India, the conflict is also referred to as Operation Vijay , which was the name of the Indian military operation to clear out the Kargil sector.
The Indian Air Force's role in acting jointly with Indian Army ground troops during the war was aimed at flushing out regular and irregular troops of the Pakistan Army from vacated Indian positions along the LoC. This particular operation was given the code name Operation Safed Sagar.
Kargil Vijay Diwas is on 26th of July. On this date in 1999 India successfully took command of the high outposts.
The Kargil war was fought for more than 60 days and ended on 26 July 1999, when the Pakistani army took advantage of the melting snow and - betraying the bilateral understanding of both the nations that the post would remain unattended during the winter season - took command of the high outposts of India.
The Pakistani army denied involvement in the war, claiming that it was caused by independent Kashmiri rebel forces, however documents left behind by casualties and later statements by Pakistan's Prime Minister and Chief of Army Staff showed involvement of Pakistani paramilitary forces, led by General Ashraf Rashid.
The Kargil war resulted in loss of life on both the sides and was ended when India regained control over the post and ejected the Pakistani Army out of the territory.
The Kargil War officially ended on July 26.
As per an Indian Express article which is available in the MEA archives there is a part of a paper by Bruce Riedel, a director on the Bill Clinton administration's National Security Council.
It says that the conflict saw “furious artillery clashes, air battles and costly infantry assaults by Indian troops against well dug-in Pakistani forces. Pakistan denied its troops were involved, claiming that only Kashmir militants were doing the fighting — a claim not taken seriously anywhere.