Superstar Mahesh Babu's much anticipated yet-untitled Telugu project with filmmaker A.R. Murugadoss went on the floors on Friday."The shooting has commenced. After the first schedule in Hyderabad, the makers will shoot predominant portions of the film in Mumbai," a source from the film's unit told IANS.Also starring Rakul Preet Singh and S.J. Suryah, the project will be made on a budget of Rs 90 crore.Tipped to be an action thriller, the film will mark the first time collaboration of Mahesh and Murugadoss.According to the source, the makers are planning to shoot a couple of songs abroad."They haven't finalised on a location yet. But they're planning to shoot in never before explored places," he said.