Kohli had travelled to South Africa as part of the Indian squad for the two-Test series, which will begin at SuperSport Park on December 26.
Put in to bat, Afghanistan were 112 for 5 in 18.2 overs when persistent rain halted the proceedings at the Zhejiang University of Technology Cricket Field, and the match never restarted from that point.
Chasing a target of 277, Gill slammed 74 off 63 balls, while Gaikwad made 71 off 77 as India overhauled the target with eight balls to spare, reaching 281 for five.
Ruturaj Gaikwad birthday: Chennai Super Kings (CSK) picked up the Pune-based cricketer in 2019. He made his IPL debut against Rajasthan Royals in 2020.