M.Sc

Basically, exam dates differs in every university. But, it happens between December to April generally.

Yes, you can join M.Sc. In Botany and BHU is one of the most coveted universities in India and have the excellent facilities there for Masters study.

Hi. Please refer this to get detailed information on your topics. Hope it helps you. Here's it.
https://www.shiksha.com/science/colleges/m-sc-electronics-colleges-india

Hello,
There are many good MS programs in Canada for computer Science and engineering. Some universities are:
University of British Columbia
University of Waterloo
Mcgill University of Ottawa
To secure admission in Canadian universities, you should have the aggregate of 60 percent and also appear for IELTS and TOEFL exam along with GRE.

Dear Friend,
Can you please tell me you are re-appearing for which exam? If it is for M.Sc. Entrance test, then yes you can apply.
Thanks.

Hey there Harini!
I hope you are doing well. GATE is an entrance test which is in the eligibility criterion for getting admission in M.Sc in Nanoscience and technology. You may easily get the syllabus of this test in internet or can join its preparation institute.

Hi, yes there is entrance exam for M.Sc maths in Thapar University.

Unfortunately, it is not available in that institute.