Battle of Hilli
The Battle of Hilli or the Battle of Bogura was a major battle fought in the Bangladesh Liberation War. It is generally regarded as the most severe pitched battle that took place in East Pakistan, now Bangladesh. The battle of Hilli took place between 23 November 1971 and 11 December 1971, although the final surrender took place on 18 December 1971. The battle. The main objective of the Indian Army was to control Bogura, thereby cutting off Pakistan forces in the north from the rest of East Pakistan. The best way of getting to Bogura was through  Hilli. The frontal assault on the Pakistan fortifications took a huge toll on both sides before Indian forces finally broke through by establishing a block in the rear of Pakistani forces in Hilli, upon which the 4FF Battalion in Hilli withdrew for the defence of Bogura. Indian forces. The Indian side consisted of the 20 Indian Mountain Division led by Maj-Gen. Lachhman Singh. The constituent units of this division were 66 Brigade, 165 Brigade, 202 Brigade and 340 Brigade (all infantry units), 3 Armoured Brigade, 471 Engineer Brigade and two artillery brigades augmented by 33 Corps Artillery. The ground  troops were aided by aerial support provided by the Indian Air Force which had acquired air superiority in the east and were armed with rockets, guns, and 1000lb bombs. Pakistani forces. On the Pakistan side, the Area of Responsibility (AOR) was on 205 Brigade of Pakistan Army led by Brigadier (later retired as General) Tajammul Hussain Malik. He had joined the brigade four days prior, when he volunteered to leave GHQ, Rawalpindi and command troops in the East Pakistan. He put up a stiff resistance that earned praise from many quarters. Major events of the battle. Tajammal Hussain Malik  had placed screens along the railway line nearby and at the Railway Station complex in the area. The defensive positions were sited in depth to cover all routes leading into East Pakistan. They fought the entire Indian division and the Mukti Bahini soldiers until the Indians decided to bypass Hilli and establish a block in its rear. Brigadier Tajammal Hussain Malik then withdrew the forces in Hilli to avoid being cut off and to defend from the Bogura itself. Bogura was surrounded from all sides by the greater numbers of the Indian army and the Mukti Bahini. Brigadier Tajammal Hussain  Malik's resistance continued even after the Pakistani Eastern Command surrendered in Dhaka on 16 December. He, in his staff car with flags and stars uncovered, went around the streets of Bogura motivating his soldiers to keep fighting. The Indian army had by then, surrounded the city of Bogura. The Brigade Major along with some 50 ORs surrendered, but Tajammal Hussain Malik, still full of vigour, refused to give up. Significance. The battle was a significant one as it involved great personal valour on both sides. This is highlighted by the fact that soldiers on either side won their nation 's highest military honours. One of the infantry battalions of the 20 Indian Mountain Division 5/11 Gorkha Rifles distinguished itself here and later earned the battle honour Bogura for itself, the commanding officer of the Indian battalion, then Lt Col F.T. Dias later rose to the rank of Lieutenant General in the Indian Army. In fact other than the battalion commander one of the company commanders, then Maj J B S Yadava become Lieutenant General and Maj Abjeet Mamik rose to become a Brigadier and Capt B K Bopanna later become Lieutenant General in the Indian Armed Forces, which is  a unique honour to the soldiers of an army. This battle was also unique in that it had started before the official start of the India Pakistan war but continued right until the formal surrender of Pakistan.