If this is regarding NEET, then you necessarily do not require domicile for applying for Management Quota seats of Private Medical Colleges. B Category seats are also called Management Quota Seats and they are filled through State Counselling and the remaining seats are filled through direct Admissions by contacting the College directly provided the Candidate has registered for the respective State Counselling and has not been able to secure a seat in the Counselling. Here the fees is usually nothing less than 40 lakhs. So, for example, if you belong to Tamilnadu, but wan to study in Karnataka, you can apply for GMCs through All India Counselling and Management Quota of Private Medical Colleges through State Counselling. You dont need to fulfil the domicile criteria here.