Shakshi, this will not be an issue. Because for one thing, the Supreme Court did mention that Aadhar card cannot be used for Educational purposes. Which means that even if you have mentioned your father's name as in the Aadhar card but it is different in your 10th marks sheet. As this doesn't also effect the merit list when the ranks are released, it is till ok. But please get an affidavit stating that both the names Rohit Kumar Biswas and Rohit Kr Biswas belong to the same person and in fact they are the names of the same person. This will not create any problem during counselling or admission process because you have a supporting document. This is necessary because NTA has closed its correction window on May 31st and you cannot make any changes to your application form now. NTA also doesn't entertain any requests for changes in the application form. So the only next better thing is to get an affidavit done. A local advocate can get this done for you. You will get your Admit card and so do not worry about it at all.