1996 Charkhi Dadri mid-air collision

On 12 November 1996, Saudia Flight 763, a Boeing 747 en route from Delhi, India, to Jeddah, with a stopover in Dhahran, Saudi Arabia, and Kazakhstan Airlines Flight 1907, an Ilyushin Il-76 en route from Shymkent, Kazakhstan, to Delhi, collided over the city of Charkhi Dadri, around 100 kilometres (62 mi; 54 nmi) west of Delhi. The crash killed all 349 people on board both planes, making it the world's deadliest mid-air collision, the deadliest aviation accident without survivors, and the deadliest aviation accident ever in India.

Source: Wikipedia — 1996 Charkhi Dadri mid-air collision (CC BY-SA 4.0)