Gowtham Model Schools in Kushaiguda for class 3, with her grandparents doing pickup

Our daughter's grandparents live on the ECIL side and already help us on fixed days. On my shift weeks it would be much simpler if her school were near them, so I'm looking at that side for class 3 next year. Gowtham Model Schools, Kushaiguda Industrial Area is close to their place. Two questions for current parents: do they take children into class 3 from a CBSE school, and what time does the primary section finish? My parents can manage pickup but not a late one.