Masters

You may not able to do M.Tech Aerospace Engineering as it is open for Mechanical , Electronics, Aeronautical or Instrumentation engineers but you may able to do M.Tech Geoinformatics.

On the basis of budget you have mentioned you can check universities in Ireland, Canada, Russia, Singapore, Hong Kong and Germany.

If you are interested in technical than go for M.Tech. M.Tech from IITs will be very valuable, scoring good in GATE will open job offers in PSUs too. If you want to pursue Management and move in business field than go for MBA. Score > 90 percentile will be opens opportunity for you to get in to top

Computer science itself encompasses programming languages as a key part of it. So, for doing Master's in computer science you will have to study different programming languages as well.

Hi,
Master's in Canada is offered by universities only. Colleges offer Diploma or certificate programmes that can be done after under grad or post grad and are mostly job oriented courses. If you are looking for Master's check the following link:
https://www.masterstudies.com/Masters-Degree/Canada/