Hyderabad: A trader was killed and his friend injured when their two wheeler rammed into an RTC bus at about 10 am at Himayatnagar on Sunday. The victim was identified as Vikas Kumar Bhansali of Begum Bazaar, who was on the pillion while his friend Vishal was riding the two wheeler. Vishal was admitted in a private hospital for treatment. A case was booked by the police against the RTC driver, who was taken into custody. The bus has been seized. Police officials are working on CCTV footage in the area to find out how the mishap occurred.