Do nursery children at Gowtham Model School, Sanathnagar ride the same buses as the big kids?

Our daughter is at a small preschool now and next year's school hunt has begun. Gowtham Model School in Sanathnagar is on my way back from work, which helps with pickups, but in the weeks when my office days move around she'd probably need the bus. For parents there: are the nursery children on the regular buses with the older students, and is there someone on board who looks after the little ones? She is three and still falls asleep anywhere.