সঠিক উত্তর হচ্ছে: তৎকালীন রেসকোর্স ময়দানে
ব্যাখ্যা: Pakistani Commander Amir Abdullah Khan Niazi surrenders to Lt Gen Jagjit Singh Aurora, the commander of the Joint Forces, at the same Ramna Race Course where Sheikh Mujib had made his historic call for independence only nine months and nine days earlier. As a symbol of surrender, Niazi also handed over his revolver to Lt Gen Aurora. Source:dhakatribune.com