Describe the main causes of floods in India every year?

The main causes of floods are as follows:-

• Due to heavy rain which causes overflow of river banks and breaking of dams

• Lack of proper drainage system which causes the water to clog in the place.

• Destruction of forest and grassland which causes the soil to swept along with water leading to landslide along with flood.

• Unplanned construction of roads, canals, water reservoirs.