Speaking to IANS, Parthasarathy said that the Simla Agreement of 1972 is "premised on the sanctity" of the Line of Control, and if Pakistan violates it then they will face the consequences of the action.
Speaking of the role of the international community at the time of the conflict, the former diplomat said there was a "fair amount of concern" from the international community over the Kargil war, but no word from China, Pakistan's all-weather ally.
"I would say quite obviously the Chinese cooperation with them (Pakistan), particularly militarily, continued through Kargil. On Kargil itself, China did not make any comments," the diplomat said.
According to Parthasarathy, the attitude of the Pakistan Army has not changed over the years. "And knowing them, they will try" another misadventure.
"There is nothing to suggest as yet that anything has changed. I do not think that individual incidents will make it (the Pakistan Army) change. Their ambitions and sentiments go back to the defeat of the 1971 War of Bangladesh and their failure of the Kargil intrusion, which in both cases have reduced them in the eyes of their own people and the world," he said.
Speaking of the current Imran Khan government, Parthasarathy said that it is referred to within Pakistan as "a selected government and not an elected government", which he said suggests that it has been selected to rule the country by the army. "And if that is how the people of Pakistan considers them then obviously the outside world thinks likewise", he said.
On the current response of the international community, he said that dozens of member countries of the Financial Action Task Force (FATF) have called on Pakistan to desist from terrorism. "By and large the international community is certainly more responsive to our assertions on Pakistan's participation in terrorism."
"The Kargil conflict brought home many hard truths for us. Firstly, the Pakistan Army, which rules the country, is not going to forget its 1971 humiliation. It will try and take some form of revenge, whenever it can. Enmity towards India is essential for its very existence and for it to continue as de facto ruler of the country."
During the Kargil conflict, India continued to issue visas to Pakistanis liberally, with the approval of then Prime Minister A.B. Vajpayee. The cross-border Lahore Bus Service and Samjhauta Express train too functioned normally, carrying passengers to and from Pakistan. "While Pakistanis were being misled by screams of imminent victory and azadi for Kashmiris, calm and determined Indians were going about their normal lives," he said.