Start with what you enjoy and what you score well in, then check which entrance exams or merit lists that course uses. A course you like but cannot reach through a clear route is only a wish.
Compare three things for each shortlisted course: total cost over the full duration, the approval status of the institution, and what students usually do after finishing. Talk to a senior student or a working professional in that field before you decide.
This guide is general information. Dates, eligibility and fees change every session, so confirm them with the institution or the official portal.