Computer Science and Engineering

IIIT Hyderabad and BITS Pilani Hyderabad campus are top colleges for BTech in Hyderabad.

Yes u can at the time of registration in the end of session ask ur teacher to register u fr biology also
U can give both exams
But many school offers either bio or cs so study cs in school nd bio ur self at home nd at the end of session get ur self register for both u have to pay fee for that
No

As you are engineering graduate in CS, you can look for job and try for higher education again. If you not interested in job now, you can go Post graduate diploma courses. You can evaluate PG diploma of CDAC to strengthen you CS skills.

Hi,
You can consider following parameters on deciding the country.
Academic excellence
Post study work permit
total cost of studying
work opportunities after graduating
I would suggest you to look for some options in US and Canada.
Regards,
Anamika

http://www.payscale.com/research/CA/Degree=Master_of_Science_(MS)/Salary

scholarships are provided those who give GRE exam and score more than 325/340. You need to apply through GRE exam and TOEFL exam. You need to have gud academics as well.

cutoff is generally different from company to company and is recommended to keep 60% throughout. Minimum salry is 2.5lacs and max salary ranges upto 7lacs domestic.