The all-rounder picked up the injury whilst batting and didn’t return to the field for the second innings, nor play any part in Sunday’s win over Durham.
Following consultation with doctors, Pandya is likely to miss three weeks and therefore wouldn’t be available for selection should the Bears reach the knockout stages.
Paul Farbrace, Director of Cricket, said: “It’s frustrating to lose Krunal for the remainder of the tournament, but he leaves the club with our very best wishes.
“Krunal was an excellent role model around the group and I’m sure the younger members of the squad will have learnt a lot from him on and off the pitch.
“Due to the short turnaround, we won’t be signing a replacement, however, I’m incredibly excited to see our squad build on Sunday’s excellent win over Durham.”