New Delhi, Aug 03 (ANI): As a flood alert in Bihar was issued followed by evacuation of thousands of people in the wake of a massive landslide in Nepal, politicos on Sunday urged for taking proper measures in advance to ensure minimal damage. The state government has so far evacuated 20,000 people living along the embankment of the Kosi River as a 10-metre high wall of water is expected to sweep down the river from Nepal soon, officials said. Over one lakh people are expected to be evacuated by today evening.