Bindra and Gagan Narang's combine score was 1193, which they bettered from the combined score of 1189 four years ago.
Soon after, Anisa Sayeed and Rahi Sarnobat won a gold medal in the 25m pistol pairs event.
Deepak Sharma and Omkar Singh won silver in 50 m pistol pairs event.
On Day 1, women lifters Soniya Chanu and Sandhya Devi Rani opened the medal chest for India by grabbing the silver and bronze in the 48 kg class.
Chanu, favourite for the 48 kg gold medal, could not justify her billing and settled for silver by clearing 167 kg which was eight kg below Nwaokolo"s total clearance. Sandya Rani took the bronze with a total clearance of 165 kg.