Hey there,

You can edit your information as many times as you  want except the registration details until clicking on 'finally submit ' online application. After final submission your application will be forwarded to next level and you will not able to edit your information. For editing the information you can go to the option 'student login' then enter your application ID and then click on submit 'login' button.

If  you have already submitted your application .Then you can contact Nodal officer where your application I forwarded for verification . You can request them to matk your application as 'defective '. Once your application will be marked 'defective'  then it will be available in your login ID in editable mode .Then you can edit your information except registration details and re submit it.

Hope this information will be helpful for you.

Good luck !