Need your valuable inputs on a formal school .
I absorb that the admission process are over with major schools but what options are left in the pandora's Box to explore.
based on the area and class your looking it will vary with factors.
If you take, If You don't have any issues with financial, In Madhapur/Kondapur area then you can look for World one, CHIREC, Sanskriti etc.
In other case, To send in reasonable amount you can look Maharshi, Vignan, Sri Ram, Sreenidhi..