Someone should update the TOEFL India site. It still states that the Aadhar card is acceptable ID when taking the TOEFL, even though ETS rescinded that policy about 13 months ago.
I still hear of people getting turned away at tests center because they lack acceptable ID. I suppose this oversight is one reason for that. The site also links to an out-of-date copy of the TOEFL Bulletin which repeats the incorrect advice.
For the record: the Aadhar card is not acceptable ID for the TOEFL or the GRE.