As you have asked about the list of Acting Institutes in Mumbai, I am providing you with list of some institutes

Actor Prepares
Address: 1st Floor, Film Industry Welfare Trust House, Juhu Road, Near S.N.D.T College, Next to Ajivasan Hall, Santacruz West, Mumbai, Maharashtra 400049
Phone:022 6526 1232

Kishore Namit Kapoor Acting Institute
Address: 95, Janki Devi Public School Rd, SV Patel Nagar, Andheri West, Mumbai, Maharashtra 400061
Phone:022 2636 1626

KREATING CHARAKTERS ACTING INSTITUTE MUMBAI
Address: Golden Gate Bunglow, Plot No. 31, Opp. Society No. 48, 2nd right after MTNL, Opp. Just Video, Mhada, Four Bunglows, Andheri West, Mumbai, Maharashtra 400053
Phone:022 6561 5628

Roshan Taneja School of Acting
Address: Bunglow No.29, Park Street, Near Versova Telephone Exchange, Mhada, Andheri West, Mumbai, Maharashtra 400053
Phone:022 3222 6043

Vidur Acting Institute
Address: D-4 / D-5, Society No. 58, Hanuman Mandir Lane,, Mhada, 4 Bungalows, Andheri (West),, Mumbai, Maharashtra 400053
Phone:099200 23837
Grace Acting Academy
Address: 301, 3rd Flr, Trans Avenue ,before Ganesh Acharya Hall. Above VLCC, Behind MTNL Tel Exchange Mahada, 4 Bungalow, Andheri West, Mumbai, Maharashtra 400053
Phone:098211 04555