Difficulty in login could be due to the use older version of browser, incorrect spellings, etc. Candidates are advised to read User manual and follow the instructions about use of browser (Google Chrome, Latest Version of Internet Explorer, Mozilla Firefox), use of same spelling and same format of date as in NEET PG application form. Another reason could be interruption in internet connection. If there is interruption in internet connection, the IP address, which is being monitored, will change and current session will be expired. In this case, it is advised to login from different system.