That is correct. There are few Medical Colleges that need prior registration and filling of the application apart from NEET application. Few of them are GGSIPU, CMC Vellore, BHU, etc. To help you with your NEET preparation, we have NEET Knockout packages that you can check at: https://learn.careers360.com/knockout-neet-may/. To help you during admission and counselling, we have https://www.careers360.com/mbbs-companion.