The online system for applying for the Master's program in CS has opened on Dec 15.
To apply you need to submit documents on DreamApply website. You'll also need to send copies of some documents by regular mail (post them before April 16). The copies have to be certified (see here).
Every year, a number of applicants are rejected simply because their applications are incomplete. Make sure you're not among them!
You'll have to submit a motivation letter. This is important.