Dear Sowmya, you should receive an SMS on your registered mobile no# with the Registration no# details. Further, your AP EAMCET applicatiob form containing all the details uploaded from the database and typed by you along with the Registration number and barcode will be displayed instantly. If you haven't received any SMS, please login with your credentials and check your application form. You will have the details of your Registration Id. 

HELLO!SOWMYA SRI

As your application form has been submitted scuccesfully,don't worry you will received an email verification of payment and registration completion.Sometimes it may take some time.If you don't receive any email or messages within 48 hrs then you must contact the concerned authority.,there will be helpine number and email id in official site of AP EAMCET, you can tell them your problem.They will respond as soon possible.

You can ask if you have other queries.

GOOD LUCK!