Hey Ishan,
Hope you are doing well :)
The eligibility criteria for Top engineering colleges of Mumbai(Maharashtra)
Are the following:

1)Nationality-Only Indian Nationals are eligible
2)Educational Qualification-Candidates must have passed HSC/equivalent exam with Physics and Mathematics are compulsory subjects with any one of the subjects-Chemistry,Biotechnology, Biology/Technical/Vocational Subjects. In these subjects taken together, the candidates should have secured a minimum 50% marks(General), at least 45%(for reserved category and person with disability) belonging to MAHARASTRA STATE ONLY

OR

candidates must have passed Diploma Engineering and Technology and secured a minimum of 50% aggregate marks(for General Category) and at least 45% aggregate marks(for reserved/backward category/persons disability) belonging To Maharashtra State only.

ENTRANCE TEST:
Candidates must have a valid score in MH CET 2019(PCM) or JEE Main 2019 Paper 1

But,Yes dear If you are from other state chances of getting a seat is very less as the seats are reserved for Maharashtra candidates.Still its never wrong to give it a shot! You never know when luck strikes you.

Hope so my answer helps!
Any more queries Do ask me?
All the best for your future dear!
Keep smiling :)