To take admission to a college in Malda for an Honours course, you need:
Minimum 50% passing marks. But it depends on how many seats are available and how many students apply for the same course. If there are limited seats, then students with merit will get the seat. If your Class 12 percentage is less, then chances of you getting the seat is less.
Also, you need to see if CUET UG scores are mandatory for admission to this college.
Yes, you can take BSc in Optometry in Malda College. However, there is no official information related to specialization provided by the university, so you need to confirm it. For more details click here.