SSN College of Engineering

Make a comparison between them. For comparison, refer to the given link:
https://youtu.be/3YAzEP1vgvQ

Yes, there is no such barrier. In India, everyone are equally eligible for getting admission in any college. There is no such barrier.

The selection process for B.E. / B.Tech are purely merit based. The candidates for M.E. / M.Tech will also be selected based on merit. But they must have a valid GATE/ TANCET score to apply. Reservations: All reservations for admission will follow the rules and regulations set by the Government.

Admissions is through TNEA counselling based on marks obtained in 10+2. Interested candidates can apply online/ offline with required information. For further details regarding eligibility for B.E. in Computer Science and Engineering from SSN College of Engineering, please refer to the link provided below:
https://www.shiksha.com/b-tech/course/b-e-in-computer-science-and-engineering-ssn-college-of-engineering-okkiyam-thuraipakkam-chennai-184058

That's hardly a good rank or percentage. It is difficult for you to get admission without any quota.