Good preschool in Bangalore

Hi,
My husband and I are moving back to Bangalore with our 3 year old son. I work as a preschool teacher trainer for a local NGO. I've lived in Bangalore for 5 years previously, but as far as finding a good preschool for my son, I am a bit lost, especially since I've been gone for a while and things change fast. I've researched online, read various reviews as well as visited a couple of preschools. I am planning on visiting a few more. But I would greatly appreciate any advise from those who are already sending their children to a preschool. What are your findings? I am looking for a full day one, but with a high international standard, preferably in HSR Layout or Koramangala area. Does anyone have any insight into Apples and Cherries, LIttle Elly, Child-care Montessori, Kara4Kids and Little Feat Montessori House of Children? Would really appreciate any advise you might have. I've mainly stumbling over finding something really good that is open for more than 3 hours a day, I need a preschool until 3 p.m. where I know my son will be safe and well taken care of.