Heavy rain wreaked havoc in northern India where major rivers swelled dangerously causing flooding in several areas in the region.The Yamuna river in the National Capital is flowing above the danger mark following heavy downpour in its catchment areas. The current water level of the river has risen 17 cm above the danger mark. Talking to AIR, the Chief Engineer of Delhi Flood Control Department, Mr. V.P.S Tomar said that water level may rise tomorrow afternoon and expected to cross 206.35 meter. He said that adequate pumping arrangements have been made and regular patrolling of embankments is being carried out.In Haryana, around three dozen villages in Yamuna Nagar and Karnal districts have been submerged in water following breaches which occurred on the embankment of Yamuna river.In Uttar Pradesh about 28 districts are affected with flood in eastern, western and terai regions of the state.In Uttarakhand normal life has been disrupted due to incessant rain. Chardham yaatra route and some other highways are still blocked.