Pakistan realised that India meant business after its eight air bases were destroyed, and "sued for peace" by seeking a cessation of hostilities, government sources said on Sunday.

A day after a ceasefire was reached, India says its strikes into the Pakistani-held part of Kashmir and Pakistan last week killed more than 100 militants.

The Indian military sent a “hotline message” to Pakistan on Sunday about violations of a ceasefire agreed this week and informed it of New Delhi’s intent to respond if it was repeated, a top Indian army officer said, while the Pakistan military’s spokesman denied any violation of the ceasefire.