The retreating Pakistani troops were heading towards Dacca and they had to be stopped at all costs. The Eastern Army Commander, in his orders to General Sagat Singh, had reiterated that he did not want the troops of 4 Corps to cross the Meghna river. But General Sagat had other plans to threaten Dacca and ensure that the pressure would make the Pakistani commanders capitulate. This is where the IAF helicopters came in.
