25 Aug 65. Major RS Dyal led an assault on Sank in J&K which was stalled by heavy Pakistani fire. However, Major Dyal managed to extricate his company intact and on the following night again led an assault and captured Sank. He pursued the enemy relentlessly and fighting with great zeal captured Ledwali Gali on 27 August. Thereafter, marching by night through very difficult terrain he took the enemy by surprise and at 1100 hours on 28 August, facilitated capture of HajiPir Pass wherein one Pakistani officer and 11 Pakistani other ranks were taken prisoner.
On the following morning, Major Dyal deployed a platoon to capture another feature which came under heavy enemy fire. In the face of heavy enemy machine gun and mortar fire, he led his two platoons in a lightning attack as a result of which the enemy fled in confusion. Throughout this operation, Major RS Dyal displayed outstanding leadership and courage of a very high order in the best traditions of the Indian Army and was awarded MahaVir Chakra.