Hello Harshal,

At the time of registering for NEET you must have recieved a confirmation message and mail on your registered mobile and mail ID. Please check those for your application number. You can also call their helpline number to retrieve your application number using your personal information filled in the form. Their Helpdesk number is - 01122041808 available between 930 am and 530 pm

Hope this helps.

All the best!