Very good travelogue of my hometown !!
, if you want to explore everything at Ramoji film city, then it easily takes whole day and if you stay there for a night it is worth, but it is bit costly in those 5-star hotels Sitara and Tara at film city.
I am sorry to hear that experience of Auto guy at Charminar, but it is a common thing in Hyderabad. Yes it is really crowded during Ramzan time there but people really enjoy such crowd and do shopping there.
You are most welcome ram to Hyderabad, but do not plan a visit in summer, it will be damn hot and you will not enjoy, best time to visit Hyderabad is winter and moderate mansoon