Facing center, left is clockwise when viewed from above. Place Abhishek first, then Apurva to his left (clockwise), then Alok to Apurva's left. Going clockwise: Abhishek, Apurva, Alok, then Abhinav (between Alok and Ankur), then Ankur. Immediate right of Abhinav (counterclockwise) is Alok.