M.Sc

If you are asking about DRDO's posts as Multi Tasking Staff MS than you are eligible. The eligibility criteria are given below.
1. Educational qualifications : 10th Class pass or equivalent from a recognised Board or Industrial Training Institute (ITI) pass. Candidates must have acquired the EQR as on crucial date of eligibility for the posts they are applying. Those awaiting results of the final examination as on crucial date of eligibility for the prescribed qualification are not eligible and hence should not apply.
2. Age : Candidate must be between 18 and 25 Years of age (Relaxable for SC/ST/OBCNCL/ESM/PWD/WIDOWS/ Divorced Women/ Women judicially separated from their husbands who are not remarried, Central government Civilian Employees, Disabled Defence Services Personnel, Persons Domiciled In Jammu & Kashmir State during the period from 01-01-1980 to 31-12-1989 as per extant government. Of India rules).
3. Crucial date of eligibility : 23rd JANUARY 2020.

First of all, think what is the end goal and how MS will help you. Applying for MS as an international student is really a taxing task. It require a lot investment and time. So one must be very sure why he/she want to pursue Masters in foreign universities. Now talking about application process. It is a five step process as elaborated below. You must have a Bachelors degree which is relevant with the Masters programme. If you are in your final year you can still apply for MS English Proficiency exam (TOEFL/IELTS): Applicant must be able to demonstrate his ability to read, write, speak and listen English language and ability is measured through TOEFL or IELTS examination. One must secure minimum scores required by the university. Application process: Post English proficiency examination one has to fill the application form of the universities and send them the required documents for evaluation. Most commonly the documents required by university are Bachelor degree certificate, TOEFL/IELTS result card, Letter of Recommendation, Statement of Purpose, Curriculum Vitae/Resume, Research paper (if any), Official Transcript. Adding to this, there are 3 intakes in Canada I. e. September, May and January for admission. On average it takes 56 months to apply for the Masters programme. It may vary from person to person. Note: September intake is the largest one and many universities do not open admission for May and January intake. I will list the name of some popular universities in Canada for MS programme to make your search easier. A) University of Waterloo
b) University of Alberta
c) University of Toronto
d) University of British Columbia
e) Western university
f) Queens university
g) Concordia university
h) University of Ottawa
I) McGill university
j) Ryerson university
4. Admission decision: After completing the application you may have to wait for half month to 4 months to get the admission result.
5. Visa application: Once you are done with the application process, the last step is to apply for Visa. You can apply for Canada student visa through online or offline medium depending upon your convenience.