India lost by seven and six wickets respectively to give South Africa an unassailable 0-2 lead in the three match ongoing series.
Kohli added it definitely hurts to lose matches on home conditions.
"As a team it hurts you because you are playing at home. We are more used to the conditions than South Africa are. But we have not played too many T20 games since the World Cup last year," Kohli said ahead of the third and final Twenty20 against South Africa at the Eden Gardens here tonight.
Kohli is unperturbed whether he is leading the side or not but said he is quite happy with his own form at present.
"My mental set-up does not really change (whether I am captain or not)," said Kohli, who is the captain of India's Test team.
"I am feeling pretty good. I am batting quite well since Sri Lanka, and have been talking a lot with (batting coach) Sanjay Bangar and we felt I am hitting the ball a lot better than I ever have. I just have to work on my balance at the crease and my contact points.
