What is the online application for neet pg exam

Its just a general information form about the candidate appearing for the exam.....like it has name, surnae, father's name , postal address, enclosures about eh mbbs certificate....gender , age .....and all the  bio data......to ensure the eligibility criteria....and the most important among is the certificate of completion of internship....

Career360 has an article for your questions regarding NEET, you can have a look and go through it.

https://www.google.co.in/amp/s/medicine.careers360.com/articles/neet-pg-application-form%3famp

Like other applications, NEET PG also asks for the general information about you with identity proofs.

Other than that you have to give information about your UG college, year of study, when did you complete your internship, percentage of marks obtained in university exams, etc.

Also you have the option to select the exam centre for writing the exam.