GRE

USA has best education facilities in the field of computer science. It is worth doing MS in top universities. Education in USA for International students is very expensive. With visa restrictions chances of getting a job for Indian students is full of challenges. If you do not have any financial problem or issue, you may go ahead with MS in USA universities otherwise you may look for some other options such as MS in German universities.
GRE requirement of International universities vary in different universities.

Your medium of instruction will not be a barrier. So many people from different cultures go abroad to study. If you are planning for UK take IELTS. Get your basics right, practice a lot. GRE may not be required. Exact inf will be given by the university.

Hi Gobind, if you want to study in Canada then GRE is not even required so there is no need to stress on it. If the university you are planning to apply to requires GRE then your question's answer will be found on that particular university website but generally GRE is not a requirement except for technical programs in Canada.

From which college did you complete your PG?

There are universities like Thompson Rivers and Vancouver Island University which do not require GMAT. You may check their websites for details.

GRE is not required by too many Canadian universities. Universities like McGill University, University of Toronto, University of Alberta and some more top public universities require GRE for CSE, EEE, ECE and similar programmes.

Hi Sabith,
GMAT stands for graduate management admission test and is the gateway of the topmost B-Schools abroad. GRE stands for graduate record examination and it is the gateway of the Master in Science programs worldwide.