Landslides and inclement weather today hampered rescue operations in the quake-hit Sikkim as the death toll in the 6.8 magnitude temblor mounted to 72, including 41 in the Himalayan state.The Sunday evening earthquake, with its epicentre near the Sikkim-Nepal border, left a trail of devastation, damaging roads, buildings and other structures, uprooting mobile phone towers and snapping communicatio