B.Tech

For B.Tech in CS you must try IIT's . If not possible then you have to seek NIT's and IIIT's. DTU is also a good option. You can also seek good colleges at state or regional level or you can try some private colleges and universities like BITS, VIT, SRM and LPU.

VIT is best & after that SRM & Satyabhama
I think these are the best three

BSc in Computer science

Hi
Ivy league universities like Stanford have stringent criteria for international applicants. Check here for all the general requirements and any specific requirement for b.tech can also be noted from the website.
http://admission.stanford.edu/application/international/

Your JEE Mains score along with Board mark is not enough for CET Bhubaneswar if you are a General Category student.
All the best.
Feel free to revert.

You can apply for Wireless Telecommunication or Wireless Networking or Embedded Systems

Yeah you can do Btech. The eligibility criteria says you should be 50%+ in aggregate in PCM to appear Engineering Entrance Examinations. Appear JEE and other institution specific exams.

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