It is possible to get CSE in some decent colleges with your scores, but it might not be in the most sought-after institutions. Your 79 percentile in JEE Mains and expected 100-110 in MHT CET, combined with your 77% in CBSE, suggests that top NITs or IITs are unlikely, but there are still good options available.

JEE Mains:

79 percentile is decent, but generally, higher percentiles are needed for top NITs and IIITs for CSE.

MHT CET:

Expecting 100-110 marks is a good range, but it depends on the competition and cutoff trends for your desired branch and colleges.

CBSE Boards:

77% is a reasonable score, but it might not be a major factor in your college selection given the other entrance exam scores.

Possible options:

NITs:

You might have a chance in some of the newer or lower-ranked NITs for CSE, or other branches like Civil or Mechanical,

IIITs:

Some IIITs might offer admission based on JEE Mains score, but it's advisable to research the specific college and branch.

State Government Colleges:

Consider state-level engineering colleges in Maharashtra or other states, especially if you have domicile. Some might have good CSE programs.

Private Colleges:

Many private engineering colleges offer CSE programs, and you might find some with good placements and facilities.

Recommendations:

1. Participate in counselling:

Participate in JoSAA counselling for NITs and IIITs, and state-level counselling for other colleges.

2. Explore different branches:

Be flexible with your branch choice, and consider other options like IT, ECE, or other related fields, if CSE is not available.

3. Research colleges thoroughly:

Look into the curriculum, faculty, placements, and infrastructure of the colleges you're interested in,

4. Consider private colleges:

If you are open to private institutions, explore options in your state or other states, especially if they have good placement records.

5. Do not drop a year:

With your current scores, you have a reasonable chance of getting into a decent engineering college. While it might not be the top-tier institutions, it's not necessary to drop a year unless you are absolutely set on a specific college or branch.