India and Pakistan are scrambling resources both military and diplomatic to respond to a crisis triggered by a massacre in Indian-controlled Kashmir that has heightened fears of a conflict between the nuclear-armed rivals.

The April 22 terrorist attack in Kashmir inflamed a long-simmering conflict that could boil over into military confrontation.

The way events unfolded after the Pulwama bombing and Pahalgam killings is strikingly similar, says a former diplomat.