[1] He served as the Chief of General Staff during 1961–1962 and was regarded as a key architect of Indian military response to the Chinese challenge.

After his years attachment accepted for the Indian Army and he was posted to the 5th Battalion, 6th Rajputana Rifles on 10 November 1934 with his date of commission as a Second Lieutenant antedated to 2 February 1933.

He was promoted to Lieutenant 2 May 1935 but by mid-1936 he was attached away from the battalion to the Royal Indian Army Service Corps, a posting that led to a permanent transfer on 18 February 1937.

[8] He returned to India in the aftermath of Indian Pakistan hostilities over Kashmir,[9] and was promoted to acting brigadier in 1950 and to the substantive rank of colonel on 2 February 1951.

The entire NEFA (North East Frontier Agency), now Arunachal Pradesh was made Kaul's domain.

The Indian patrol occupying Tse Jong was wiped out when an 800 strong enemy force raided the post subsequently.

[1] Kaul was the recipient of the Param Vishisht Seva Medal instituted by the Indian government in 1960, for his work in successfully completing the construction of quarters for troops in Ambala.

His involvement with Jawaharlal Nehru later turned out to be a major reason for shameful loss and massacre of Indian troops at the hands of the Chinese".

He reportedly received a number of undue professional favours throughout his career due to this personal connection and he made full use of this opportunity with utter disregard to the Army organisation".

However, Lt General Kaul also authored a book named The Untold Story, where he gave his version of reasons for the loss in the 1962 war.