Everyone is dissatisfied but degree of its magnitude is diff. For everyone . Some wanted to just qualify, some got 7-8k but they wanted atleast 1000-2000 for CS at IIT and thinking of NIT cse, some got 1000 but wanted to get 3 digit ,many are not satisfied with branch , many are thinking of drop.
Even if you came first you would be little disappointed you could not ace it.
Top NIT cse is awesome but nothing can completely fulfill your greediness .