For a ward of 3+ years you need to ensure care and well being along with good learning for the basic foundation. The pre-school years are crucial for developing this early foundation. A few of the needs you might want to check out for finding the best CBSE school for your daughter can be-\

1. location : For a child the school must be near to where she/he resides so that the child is not drained through out the day with unnecessary travel.
2. safety and security : established schools generally possess fire fighting equipment and security guard.
3. care: proper availability of human help for children in the form of childcare helpers.
4. learning: the curriculum must be so designed that the child does not feel too overwhelmed and burdened even in the initial stages of growth.

seeking into all these parameters you need to find the best suitable option for yourself. The most necessary thing to ensure is to not discomfort the child for getting the best-est education, a little compromise on the syllabus can be made to carve out a better and unexhausted human.

thankyou, and good luck!