Hi Karthick,
Conputer Science Engineering is a course through which an individual can learn about basic elements of Computer programming. The demand for Computer Science engineers can never be on decline as the growth of IT Sector, the need of software as well as hardware engineers are on the rise, therefore it is a course that could be preferred, its a good course.
The Candidates are taught knowledge of Design, implementation and management of Information system of both hardware and software. 
The Course Computer Science can be pursued in B.Tech. 
An individual can get admission to the best of the colleges in India by JEE Mains which is a national level exam conducted by National Testing Agency (NTA). This exam is Conducted by NTA twice a year.
You can know more about Computer Science over here : https://www.careers360.com/computer-science-engineering-course
And more about JEE Mains over here : https://www.google.com/url?sa=t&source=web&rct=j&url=https://engineering.careers360.com/exams/jee-main&ved=2ahUKEwipyruZg97hAhUG5o8KHbeCCy8QFjAdegQIAhAB&usg=AOvVaw1k3rMyr-Osb0qy4gsPfOaR&cshid=1555741102912
Hope it helps :)

Computer engineering is a branch of engineering that integrates several fields of computer science and electronic engineering required to develop computer hardware and software. This field of engineering not only focuses on how computer systems themselves work but also how they integrate into the larger picture.

Computer Engineering (or Computer Science Engineering) is a branch of engineering which studies parts of electrical engineering and computer science and applies it to the making and development of computers and computer-based systems. It includes learning of algorithms, programming languages, operating systems, computer network, etc.

The best course is B.Tech in Computer Science. In India the best institutes for B.Tech Computer Science are:
1. IIT Bombay
2. IIT Delhi
3. IIT Kanpur