in search of school in bangalore for my 4 yr old nephew who has speech delay

Hi i'm sindhu... plz can anyone suggest a good school in bangalore for my 4 yr old nephew.. he has speech delay,he still doesnt know how to chew his food..everyone in my family r very much worried about him.. he is a very nice child,cares for everyone.. the problem is that he is very slow in doing all the things..his speech is like a 3 yr old child..he needs potty training also..my sister is very depressed abt him as she is alone,they stay in U.K,she stays with her husband and son..i dont know what facilities and care r available for him there... but me and my mom feels that my sister will feel better if she and her son comes back to bangalore itself...i want my nephew to become like a boy of his age.. i dont want to loose my sister... PLZ  PLZ  suggest a good school which will help my nephew... it would be very greatfull to you.....thank u