Ahmedabad, June 15 -- Doctors in Ahmedabad worked round the clock to match blood and DNA samples to slivers of charred remains, forensic investigators combed through mangled pieces of metal for human parts, and rescuers cut through the wreckage to pull out bodies on Saturday as authorities struggled to arrive at the final toll of India's worst single-aircraft tragedy. Officials said they pulled out three bodies from the debris on Saturday, adding to the already staggering toll from the Thursday afternoon crash of the London-bound Air India 171 flight just outside Ahmedabad airport, even as it became clear that people had died not just on the plane or in the hostel it slammed into, but also the neighbourhood. The government has confirmed tha...