I discovered this when googling for things to do with kids during vacation and what a find it has been! This bus is available on weekends 630 onwards outside the museum.You will have to check for the timings with Kalpesh on +91 98708 02643. He is extremely helpful. Now the experience was just awesome. Kids were thrilled to be taken around in an open air double decker, something they never knew existed 😀. I cannot miss mentioning the tour guide who was friendly and enthusiastically explained in brief the history of all the monuments and buildings. My kids want to go again and I would be recommending this to all my friends and family. An online ticket option would be great, just to avoid the disappointment of not getting one of the bus is full.