If you are receding in Mumbai SIES is actually a great option for schooling. The location is in Matunga, and it is 1-2 min walk from King Circle railway station. It also provides school bus services for areas including Sion, Dharavi, Antophill, and Chunabhatti. The sports sector of the school might be a bit weak but the tutoring is actually great. Also it allows an inhouse option for joining SIES Jr college which is an autonomous college for Jr college Science department.