HELLO MY DEAR ASPIRANT,

their are several in Mumbai but as you have narrowed it down to Borivali.

I would suggest you the following-->

1. TOPPER'S ACADEMY (have experienced faculty , conduct doubt clearing sessions, have library facilities , daily answer writing practice , have a small batch , etc. ) FEES-Rs. 1,40,000 + GST
2. THE HINDU ZONE ( great and supportive faculty ,e – library facilities, small batch, periodically updated study materials) FEES-Rs. 90,000 to Rs. 1,50,000
3. IIT RANKER (again a good faculty, small batch , numerous mock tests) FEES- Rs 85,000 to Rs 1,00,000

further I am not going to point out advantages as they are al same unless some thing different

4.RESONANCE(distance learning facility, counselling sessions, small batch) FEES-1 lakh-1.50 lakh

FOR MORE INSTITUTES YOU CAN SEARCH THE NET FOR FURHTER MORE INSTITUTES HOWEVER THE ABOVE POINTED ARE THE BEST IF YOU ASK ME I SUGGEST RESONANCE AS IT IS VERY GOOD.(if you have funds)

best of luck mate!!!