I see... Normally in applying for a Master's Program you first choose which school you think would be a good choice. Look for a school that offers the Master's Program you wish to take. After that, you can check the school's admission process for their Master's Program (you can find this in their website most probably). Then you process the requirements and see if you qualify for the program. Also check for scholarship programs if you wish to apply for one.
I would also recommend you to consult your undergraduate school if they are tied up with any universities abroad that offers a Masters Program in the field that you like. Try asking your college professors also and see if they have any recommendations for you.
Applying for a Masters Program abroad is a long process and can be a bit of a hassle. I would recommend you to start your search the soonest possible time.