B.Tech Computer Science and Engineering

You should opt for CSE because it is highly technical and demanding field. Computer science graduates earn higher salaries. It's no secret that computing careers provide a nice living. According to the US Bureau of Labor Statistics' Career Guide to Industries 2010-2011, the computer systems design and related services industry is one of the 10 fastest growing in the nation.
Computer specialists are likely to see the best job prospects. Computer science degree holders also work in a wide range of industries and they tend to develop strong theoretical and analytical skills that can be applied to many different professional pursuits, from engineering to healthcare to finance.
You can consider the below mentioned colleges:
1. IIT.
2. DTU - Delhi.
3. UTM - Shillong.

Computer Science is the study of how data and instructions are processed, stored, communicated by computing devices. A modern descendant of Applied Mathematics, Computer Science deals with algorithms for processing data, the symbolic representation of data and instructions, the design of instruction languages for processing data, techniques for writing software that process data on a variety of computing platforms, protocols for communicating data reliably and securely across networks, the organization of data in databases of various types and scales, the emulation of human intelligence and learning through computer algorithms, statistical modeling of data in large databases to support inference of trends, and techniques for protecting the content and authenticity of data.

The syllabus of B.Tech computer science and engineering (CSE) and IT overlaps between 80 to 90% in various universities. CSE is the study of computers and computational systems. Computer scientists deal mostly with software and software systems; this includes their theory, design, development and application. IT engineering is application of CS for enterprises to meet business goals. CS graduates can easily do both application and systems development whereas as IT engineers are trained to work on application development. Indian IT industry prefers CS graduates over IT because CS is branch taken by toppers in all engineering entrance examinations.