Increased incidence of floods in the plains of North India are due to

Increased incidences of floods in the plains of North India are due to increased deforestation in catchment areas.
Deforestation or forest clearance is the removal of a forest or stand of trees from land that is then converted to a non-forest use.
Deforestation causes increases in temperatures and changes in the amount and distribution of rainfall generally creating a drier climate. These impacts can affect soil moisture, reducing yields in some areas and increasing flooding in others.