KOLKATA: Five city girls, who were marooned in a remote village at Rishikhola when the Teesta flash flood washed away the sole bamboo bridge connecting their homestay on a hilltop with the mainland, returned to their Kolkata homes on Friday. They were rescued by army and cops but had to trek 8kms along a forest, riverbed and broken roads to reach safety. They were escorted in a car to New Jalpaiguri.The...