B.tech in computer science is a good option. But you cannot say that it is the best option. It totally depends on your interest. If you are interested in maths, logic, programming then go for computer science. Each branch has scope. As CSE and IT are the most demanding branch. It has good scope in private sector. So you can go for this .In India, CSE is one of the most demanding fields. Candidates from top colleges, like Indian Institutes of Technology (IITs), National Institutes of Technology (NITs) and Birla Institute of Technology and Science (BITS) get paid exorbitantly. It involves jobs in software development, web designing, software testing and much more.

Programming in todays world has been stretched even further into other fields like Mechanical and Electronics and hence, its demands have been increasing. The advent of robotics and Artificial Intelligence too has given a boost to the demand and scope of placements in CSE.