To guard against any disaster situations this monsoon,the MMRDA opened its 24-hour Control Rooms on Friday,ahead of its pre-monsoon desiltating and Mithi-river deepening work. Five nodal officers will monitor the rooms to be managed by 35 officials in three shifts. We have also asked all concerned to strictly observe safety measures,maintain barricades with top security and clear road muck, said Rahul Asthana,MMRDA Commissioner. People can contact the Control Room in cases of water logging,accidents,traffic snarls and uprooting of trees. Helpline numbers are 26591241,26594176 and 8080705051.