AHMEDABAD: Three resident doctors and the pregnant wife of another doctor were killed Thursday in the trail of destruction left by Air India flight AI 171 crashing into the Atulyam-4-4 residential quarters and a hostel mess on the campus of Ahmedabad’s B J Medical College and Civil Hospital.Doctors Aaryan Rajput, Manav Bhadoo and Rakesh Deora died in the disaster while a colleague, identified as Jay Prakash Chaudhary, is reported missing. The identity of the pregnant woman wasn’t immediately known.Dr Ramkrishna was having lunch when a friend called to say that an aircraft had crash-landed on campus. “There was a loud explosion and a ball of fire. By the time we realised what was happening, the plane’s wreckage was strewn across the campus. There were bodies in the debris that I could make out were of doctors from their aprons,” he said. Sources said around 21 resident doctors of the hospital suffered burns and fractures.