Who was Major Sudhir Kumar, was known as 'Rambo' in the Army?

Major Sudhir Kumar from Himachal Pradesh was famously known as 'Rambo' of the Indian Army by his peers. He wrote to the then Chief of Army Staff to be posted at the Kargil war front to fight for the country. He laid down his life during the Kupwara operation and was awarded the 'Ashok Chakra' posthumously.