Colleges in Mumbai

Kindly visit this link:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor

Hello, here is the list of colleges for B.Com in Mumbai which offered admission having 50% marks minimum.
St Xavier College
Narsee Monjee College of Commerce
St Andrews College of Arts, Science and Commerce
Mithabai College of Arts

Hi Aditya Mahamuni
Kindly predict your college in this college predictor. JEE Main rank predictor is an online tool which predicts the candidates rank range and probable colleges based on the difficulty level of the examination, average marks scored in JEE Main and seats available in IITs, NITs, GFTIs, and other SFTIs. The rank predicted might not be accurate but it certainly does give an idea to the aspirant. Know your college admission chances based on your JEE Main Rank, Home State, Caste, Gender, etc. Here https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor.

The minimum eligibility is 50% in 12th std. So, you must have more than 50 marks in Maths in order to get admission.

No, It's not possible for you to get admission in any if the NITs as the seats are limited to 559 in all NITs and even it's not possible for you to get admission in SIR JJ college too. It's better to try for other institutes.

You can take admission in civil engineering either you have a Diploma in civil engineering or you have passed 12th class with PCM. You can't take admission directly after 10th class. All the best.