At times flood comes all on a sudden. People sleep at night in their houses peacefully. They wake in the morning to see their houses surrounded with water. This cause untold suffering and immense miseries to the people. Their belongings are washed away. Houses collapse and people are rendered homeless. Many men, women, children and cattle are swept away by the current of the river. Floods destroy crops standing in the fields and cause famine. They also cause epidemics. Many people lose their resources and tools and thus lose their occupation. It is a very pitiable sight to see cattle and men being washed away by the current of the river during the floods. Often entire families are washed away and they drift on the thatches and frail barges, aimlessly. The flood also damages railway lines and makes the running of trains impossible.