I got around 400 and I'm an SC will I get MBBS seat?

Dear Shyaam, first to qualify in NEET, a SC Category candidate has to score 40% of the top NEET score. It is 40% for SC, ST, OBC. For example, if the top NEET scorer has scored 400,  SC candidates should score atleast 100.  Now not every qualified candidate can get a medical seat. It depends on cut offs. Now cut offs change every year and are dependant on various factors like no.of seats available, no.of candidates appearing for the exam, difficulty of the exam and top NEET score. Every State except Jammu and Kashmir has All India Quota and State Quota and there is different cut off for each quota. Now every State has various cut offs for every college and Category. Tamilnadu is one of the States with highest cut off. But States like Assam do not have that high cut off. So it totally depends on what State you want to apply and if you want to apply under All India Quota or State Quota. State Quota has higher cut off marks.  For Tamilnadu, it should be atleast 550. But for Himachal Pradesh it is around 280. And you cannot be eligible for State Quota of every State which means you should also try for All India Quota. But without having an idea of which State and Category you belong to, it is difficult to guess your chances. Neverthless, around 400 marks can get you a Medical seat.