India, Oct. 3 -- Manipur, geographically, is drained by an array of north to south flowing rivers and streams originating from the surrounding hills. Of the two river systems, the Manipur river system crisscrosses across the Imphal valley and drains out through Myanmar whilst the Barak river system runs to Bangladesh. An increase in rainfall in the hills leads to a sudden increase in the load of the rivers within a few hours.

Brajakumar Tourangbam, Director, Directorate of Environment and Climate Change, Government of Manipur, while explaining how floods occur post rainfall remarks, "Due to the very sudden increase in water load in the upper basin, all the rivers started filling up and multiple breaches (breaking of a protective barrier) ...