B.Tech Computer Science and Engineering

Dear M Sai,It is one of the best universities and is a good choice. It provides good placement every year and many good companies visit its campus. Manipal has always offered great placements for CSE and this year was no exception. The highest package reaching up to 20 LPA (Amazon and Microsoft), the average salary being close to around 5 LPA.
Most of the big companies visit this college including Microsoft, Amazon, Citrix, Oracle, InMobi, HP, Deloitte, Cerner, etc.

You can go for the following:
NIT students admitted through JEE Mains.
IIT students admitted through JEE Advanced.
Jadavpur Engineering College students admitted through WBJEE and there are lots more.
For more result you may visit https://Shiksha.com and search for colleges within your preferred location.

Dear,
B.Tech in CSE has a better scope than BCA.

It's an average choice if you have resources and urge to learn then only join the same. Placement depends on your skill set.

MIT, Manipal has good facilities and placement for B.Tech in CSE.