You can look for :
1. Chirec public school ,kondapur
2. Sancta maria international school, gachibowli(nearby kondapur)
3. Globe toters, gachibowli
Globe toters is a birla pre school, after doing KG , kids directly move to Birla Open Minds, Tellapur from class 1. A beautiful school with great infrastructure, facilities, and high quality education. But yes it is far from kondapur.
Chirec public school is also a great school. But addmission are bit difficult. But you can definitely try.
Sancta maria is also a good IB school.
Apart from these Oakridge,Dps, Kennedy high are also great choices.