Dear Balu, you cannot check if the photo is correct once you submit the application form. If there is any discrepancy in the photo uploaded, NTA will send you a notification at your Registered Email and Mobile number asking you to rectify the error. If you did not receive any such notification, consider your photo to have met the said guidelines. Now regarding the application form, NTA has opened its correction window and you can login to the official website with your login credentials, go through your application form, make corrections if necessary and submit the form after saving the changes. However you can use this correction window only once. For more information, please visit our page at: https://engineering.careers360.com/articles/jee-main-application-form-correction