Hi..i have been looking for this answer too. in delhi criteria is quite different from that of mumbai or pune or goa. i was admitted in nursery wen i was 3 years old.but, my toddler wud be in nursey at 4 although we both share our birthdays in the same month. would love to know from others if 3 or 4 is the right age.
For ICSE schools (Mumbai) , Kids shud complete 2.6 yrs by march 31st for nursery.. Admission process will be started around sept/oct and schooling starts from april..