Ankur, for the corrections to reflect on your application it will take a while. That is the reason, it is suggested that you take a print out of the confirmation page to the changes you have made. Even if printout is n ot a possibility, taking a screenshot of the page should do. Right now, give it a day or 2 because eitherways the correction window is open until May 31st. Even after 48 hours, if it doesnt change, try to make the changes again. If the system doesn't allow you, please mail the helpdesk at: jeemain@nta.ac.in (mailto:jeemain@nta.ac.in) . This should be resolved.