There will be no problem just remember to take the self attested mark sheet copies at the time of admission.

Hello, 

You don't need to worry as per new DU rules you can edit your form even after payment. For that you have to just pay a fees of 100 rupees. So now self attest the documents and recheck every detail before submitting. You should be very careful with the form and make sure their are no mistakes in it.

All the best