Engineering Entrance Exam

With this rank, you might get CSE in Government College like:
Jalpaiguri Government Engineering College
Kalyani Government College
University Institute of Technology, Burdwan

With this rank, you will get college like:
Haldia Institute of Technology
Heritage Institute of Technology
Narula Institute of Technology
University School of Technology, Burdwan
Academy Of Technology, Hooghly

With this rank in WBJEE, you will get college like:
Haldia Institute of Technology
Heritage Institute of Technology
Narula Institute of Technology
Best of luck.

As per last year WBJEE cutoff for Heritage College of technology, you will get civil engineering branch.
Your rank fall under civil cutoff.
So, best of luck.

At this situation, you will get college like:
Maulana Azad Abdul Kalam University,
Jalpaiguri Government Engineering College
University Institute of Technology, Burdwan
Best of luck.

Yes, you will definitely get Jadavpur University with this rank.
And yes, you will definitely get admission in top branches like CSE and Electrical. Your rank falls under last year cutoff.

Sorry to say, but admission in Heritage College has been closed for general category student.
I hope you understand my point. However, you may get admission in Narula Institute of Technology and Academy Of Technology.

Your rank is too high, so there are no chances of any government colleges. However, you may get private college with this rank like Academy Of Technology, Hooghly and Narula Institute of Technology.

Narula Institute of Technology, Kolkata and Jadavpur University are the two colleges you may get with this rank 12620 under general category. Best of luck.

Sorry to say, but you haven't cleared JEE Mains required cutoff. So, there is no way to get any college that gives admission on basis of JEE Mains score in Maharashtra
You may get admission in any private college on the basis of class 12th percentage.