Megha, you haven't mentioned your Category. Nevertheless, in 2019, under State Quota, the cut offs for Thiruvananthapuram Medical College have been as follows:

General Category: 589

SC:450

ST: 300

Now this is 2019 marks data and cut offs change every year. Cut offs change every year depending on various factors such as no.of Candidates appearing for the exam, no.of Candidates qualified, top NEET score and difficulty of the exam. Looking at ranks, under General Category, an All India Rank of 2332 was the maximum rank under General Category. It was 44421 for SC and 181020 for ST. Now these are All India Ranks and are bound to change every year. So for a seat in this College, you should score atlast 615 and above if you belong to General Category, 500 and above if you belong to SC Category and 425 if you belong to ST Category.  And if you are preparing for NEET, you may as well try our NEET Knockout package: https://learn.careers360.com/knockout-neet-may/ . And because you just have 40 days to prepare for NEET, you may as well use this opportunity.