Police in Hyderabad on Sunday booked the owners of high-end imported cars like Rolls Royce, Lamborghini and Maserati for driving around without paying road taxes. Road transport officials cracked down on these cars when they were cruising on the streets of Hyderabad holding an impromptu Independence Day rally. Authorities believe the owners evaded road tax to the tune of Rs 5-8 crore on these high-end cars.