You haven't mentioned the Category you belong to. This is important because cut offs depend on this factor. Nevertheless, in India we have Government Medical Colleges, Private Medical Colleges and Deemed/Central Universities. Private Medical Colleges do not participate in All India Counselling and the seats are filled through State Counselling alone. And for appearing for State Counselling you need to hold the domicile of that particular State. Or else the only other option is through Management Quota. Under All India Quota, All the 15% of All India Quota Seats except for Jammu and Kashmir, 100% Seats at Deemed and Central Universities, IP Quota seats in ESIC Colleges, Seats at AFMC, AIIMS and JIPMER are filled by DGHS. With 400 it is difficult for a seat in All India Counselling.  The 85% State Quota and Private Colleges are filled by the respective State Authorities. And there are 3 Categories in Private Medical Colleges. Category A is the Government Quota Seats. And only candidates of the home State are eligible to apply for these seats. In 2019, the cut off for MP under State Quota for various Categories has been as follows:

General Category: 530

OBC: 524

SC: 409

ST: 289

So with 400 your chances for a seat in a GMC are difficult unless you belong to ST Category. 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. This is where you might have a chance. Here the fees is usually nothing less than 40 lakhs. The last Category is NRI seats Category and you cannot apply for that. Overall, if you belong to Reserved Categories, you will need atleast 450 and it should be atleast 575 if you belong to General Category. 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.