Colleges in Mumbai

Don't worry, if you can't pass the Internal exam, you'll not failed the semester.
Internal Exams (Mid-Semester Exam)Marks are taken into consideration in the final evaluation procedure for VJTI .

Actually, the final evaluation score comprises the results of the midterm, final, and teachers' assessment.
which gives the midterm exam 20% weight, the final exam 60% weight, and the instructor evaluation 20% weight.

The VJTI offers 9 branches in total for undergrads. 
consisting of Civil Engineering, Computer Engineering, Electrical Engineering, Electronics Engineering, Electronics & Telecommunication Engineering, Information Technology, Mechanical Engineering, Production Engineering (Sandwich), and Textile Technology.
A total of 60 seats are available for Sanctioned Intake at each branch, along with 3 seats for CIWGC intake and 6 seats for FN/PIO/OCI intake.
These seats are all filled in accordance with the categories, through the CAP Rounds.
However, you can also try for General Category seats during the spot round.

CMAT cut off for Welingkar is around 85. So, you definitely have good chances. 

Also you can use Shiksha college predictor-

https://www.shiksha.com/college-predictor