Yes, starting July 1, 2021, ETS, the GRE exam's governing body, has announced that they will accept Aadhar cards from Indian students taking the GRE exam if they do not have their passports to create a GRE student ID. Because new passports have not been provided at a normal rate due to the pandemic, students who have not yet received their passports can temporarily use their Aadhar cards as proof of identification. This service's expiration date has yet to be determined.