hello soumyajit
It will be extremely hard to say the minimum marks required for admission because the cutoff varies but seeing the cutoff the minimum will be around 550 marks for Murshidabad M C & Hospital and not lower than that i have attached links for college prediction that will search college for you according to your rank and score and also a link for cutoff of all colleges in West bengal
https://medicine.careers360.com/articles/neet-cutoff-west-bengal
https://medicine.careers360.com/neet-college-predictor?icn=QnA&ici=qna_answer
hope this helps you
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile