India skipper Rohit Sharma won the toss and elected to field against South Africa in the first of the three Twenty20 internationals on Wednesday.

The hosts, fresh from beating Australia 2-1 in a three-match T20 series, have made four changes to their team in Thiruvananthapuram.

Wicketkeeper Rishabh Pant and left-arm quick Arshdeep Singh come in for the rested Hardik Pandya and Bhuvneshwar Kumar.

Deepak Chahar and Ravichandran Ashwin make the team in place of Yuzvendra Chahal and Jasprit Bumrah, who is out due to an injury niggle.

The two teams are into their final set of matches before next month's T20 World Cup in Australia.

"Very important to continue to do what you're doing and keep that momentum in this format," Rohit said at the toss.

"Very healthy atmosphere in the group and we also want to make sure to tick all the boxes and so far we have been doing good and we just want to continue to do that."

South Africa have returned to India after their previous T20 tour finished in a frustrating 2-2 draw in June.

Captain Temba Bavuma said the matches will be a good tune-up for the World Cup.

"Good going over the last couple of months. This is an important series for us and we want to continue all the good work," said Bavuma.

"Guys always enjoy the India trip, the energy of the guys is up again and nice to be back in action after a couple of months," he added.

"Different conditions to Australia but in terms of match practice, it is a great opportunity."

Teams

India: Rohit Sharma (capt), K.L. Rahul, Virat Kohli, Suryakumar Yadav, Rishabh Pant (wk), Dinesh Karthik, Axar Patel, Ravichandran Ashwin, Harshal Patel, Deepak Chahar, Arshdeep Singh

South Africa: Quinton de Kock (wk), Temba Bavuma (capt), Rilee Rossouw, Aiden Markram, David Miller, Tristan Stubbs, Wayne Parnell, Kagiso Rabada, Keshav Maharaj, Anrich Nortje, Tabraiz Shamsi