Why is Varun Chakaravarthy not playing against Afghanistan in 2nd T20I?

India skipper Shreyas Iyer won the flip and opted to tract against Afghanistan successful the 2nd T20I astatine the Arun Jaitley Stadium successful Delhi. India won the opening T20I by 7 wickets and presently pb the three-match bid 1-0. India made 1 alteration to their playing XI, with Bishnoi replacing Chakaravarthy.