Captain Balram Singh Mehta is a young officer in the 45th Cavalry regiment, which is equipped with the PT-76 tank, nicknamed 'Pippa'.
Meanwhile, Radha proves herself to be good at cryptography and is recruited into the 'Communication and Analysis Wing', a signals intelligence organisation that decodes enemy messages.
Major Ram is ordered to covertly enter East Pakistan (Bangladesh) under a false name, to train the Mukti Bahini, and advise them in conducting operations.
While on an inspection tour, the Army Chief General Sam Manekshaw is impressed by his innovations and orders him to join his regiment on the front.
Captain Balram's regiment along with the 14th Punjab battalion crosses the border and engages Pakistani units in the Battle of Garibpur.
That brings an extra urgency to India's operations to secure victory and Pakistan's surrender before the US ships can get within striking distance.
Captain Balram's troop makes contact with the Mukti Bahini, who offers to lead him to the camp where Major Ram is being held.
Major Ram is about to be shot for not revealing any information, but the Mukti Bahini rebels reach at the right time and shoot his would-be executioner.
Captain Balram's tank unit also arrives, and after a fierce battle, the Pakistani camp is captured and many Bengali women being held as sex slaves are freed.