Hello Akshat!
If you have not submitted your BBA application form at the final stage after its completion and not even saved any of the particulars filled by you, then you'll have to fill it again from the beginning.

You simply need to login to your account by going to the online application portal with your registered email/mobile number/username and password.
Then you will be able to complete your application form and submit it, after having a proper recheck.

If you have any further queries, kindly comment below. Or you can also post your question in our QnA platform.

I hope you will find this answer helpful.