Hello bijen, as you are from Odisha their is chances for you to get seats in government medical college in odisha in SC category through state quota.
Chennai medical college hospital and research Centre, Trichy is the private medical college in tamil nadu, chennai medical college hospital and research centre, trichy is affiliated the Tamil nadu Dr. MGR medical university, chennai. Minimum 380 to 450 marks should be their in NEET entrance exam 2019 for SC category to secure seats in chennai medical college hospital and research centre, trichy  Tamilnadu
Hope this help you
Thank you

Hello Bijen,

The cut off of colleges depend on the Category you belong, difficulty level of NEET UG & State topper rank or score. To get admission at Chennai Medical College, you need to score more than 400-500 in NEET UG 2020.

This is list of Government Chennai Medical College you can apply to,

(MBBS) :

• Madras Medical College, Chennai :500
• Stanley Medical College, Chennai :463
• Govt. Kilpauk Medical College, Chennai :430

(BDS) :

• Tamil Nadu Govt. D.C. & Hospital, Chennai :400

Click on this link for more details,

https://medicine.careers360.com/articles/neet-cutoff-tamil-nadu

BEST WISHES!