I don't want to go into who was at fault and what not because there are so many other threads going on but what was Abhimanyu trying to do?
1. He repeatedly said he will make this the best birthday ever for Abhinav. He in fact took the initiative to plan a surprise party for him when no one really asked him nor did he owe him any kind gestures.
2. When Abhir wanted to take his papa to the game room, Abhimanyu stopped him and took him instead. He was leading the surprise party so wouldn't he stayed back and helped instead of leaving himself? He would have been more of a help than Abhir.
3. Why did he want them to drink when Abhimanyu knew there was a party in the next two hours? Nav didn't know so he was okay with drinking but was worried about getting scolded from his wife at night. Abhimanyu himself decided not to drink but made it seem like he was drinking so Abhinav can continue to drink to a point where he would be drunk. They could have gotten drunk after the party no? Why didn't he take Kairav with him when Abhinav insisted?
Looking at everything, it looks like Abhmanyu wanted to bring Sharma jee back to the party drunk? He wanted to defame his image in front of everyone including Abhir?
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