During the Kargil conflict in 1999, India did not cross the Line of Control (LoC). If it has behaved differently this time, the reason is that Pakistan’s reputation has nosedived in the last decade and a half.
From being an “international migraine”, as former US Secretary of State Madeleine Albright called it, to a country which keeps “snakes in its backyard”, as another Secretary of State Hillary Clinton said, Pakistan has been steadily undermining its own position as a respectable member of the world community.

