Generally there is not any problem in such case (Sree and Sri). Since jee main admit cards are out and there is no scope of correction in it now, you can make correction in  your aadhar card by visiting the aadhar centre.

To make correction in your aadhar you will need some documents. You can find the list of documents needed on the official website of UIDAI. Visit aadhar centre near you and get it updated to avoid any problem at the exam centre. (//uidai.gov)