During the Indo-Pak war in December 1971, Major Yadava commanded a company of 11 Gorkha Rifles. On 12th December, his company was ordered to establish a roadblock behind the enemy defences. The company after crossing the Ichamati river reached the location of the roadblock. During the reconnaissance, an enemy telephone line was located and it gave the location of the enemy battalion headquarters.
Major Yadava surrounded this headquarters and captured the battalion commander and other officers. The enemy blocked all the routes of escape to isolate this company in a bid to rescue their commanding officer. Major Yadava held on. The stiff resistance by his company had created a wedge in the enemy defences permitting our armour to break through. The enemy completely confused and unnerved and suffering heavily in men and material surrendered to our forces in large numbers.
In this action, Major Yadava displayed initiative, gallantry, determination and leadership of a high order. For this he was awarded the Vir Chakra.
Major Yadava commanded an Infantry Brigade during the height of militancy in Punjab where he was awarded Vishist Seva Medal for successfully conducting operations against the militants. He commanded a Mountain Division where he was successful in effectively containing the insurgency. For his distinguished services, he was awarded Ati Vishist Seva Medal.
Besides other assignments at the Command Headquarters and Army Headquarters, he has also been the Military Attache to Malaysia and Brunei. The General Officer is an alumnus of National Defence College. He is also the Colonel of the 11 Gorkha Rifles.
On March 31, 2000, Lt Gen Yadava assumed command of 16 Corps, the largest, most challenging and prestigious corps of the Indian Army. On his assuming the command of the elite Nagrota Corps, senior defence officers and other dignitaries present felicitated the General Officer on this most prestigious assignment.
On Aug 19, 2002, Lt Gen Yadava took over as Dy. Chief of Army Staff (Weapons and Equipment).