Getting 400 marks in meet for  ST category acm get you government colleges in many state . But as you know every college has there own eligibility criteria. There are chance of you getting the college's.  To make your work ease I have provided you a link that will share the enough information of the college that will help you. https://www.google.com/amp/s/medicine.careers360.com/articles/neet-cutoff-kerala/amp

Hope it may help you!