Hello aspirant, hope you are doing good .

So, the basic difference between category A and category B is that category A is convenor quota based seats(say it as semi government colleges) which has a decent Tuition fees of medical college and category B are private management seats governed totally by private bodies and costs much than A category. Approximately 9 lakhs per annum excluding Hostel fees. The registration procedure is the same for both, with not much difference, you just have to mention the category that you are from, and that's it.

For more information about AP EAMCET counseling, visit :

https://engineering.careers360.com/articles/ap-eamcet-counselling

Hope this helps you. Good Luck !!