Ashwin, Jadeja first-choice Test spinners: Kohli
"Ashwin and Jadeja in red-ball cricket are going to be our first choices because they give you so much with the bat as well," Kohli told reporters.
"So for us, it's about finding the best balance as a team and it is purely combination based," he added.
Kohli also praised Rohit's record-breaking effort in his first Test as an opening batsman.
Rohit scored 176 in the first innings and then went on to score 126 in the second. With this, he became only the second Indian opener to score centuries in both innings of a Test match.
"He is in a great space and playing really well. He looked relaxed in the first game, which is great to see," said Kohli.
"He is feeling like home at the top of the order; and for us, as a team, it is a huge bonus," he added.
On the final day of the first Test, pacer Mohammad Shami scalped five wickets enabling India to register a victory before the tea interval.
"I think on flat pitches, he has the ability to pick wickets in dead situations. He is someone who can change the complexion of the game anytime," said Kohli.
India will now face South Africa in the second Test of the series in Pune from October 10.