The following six major relief features are found on the Indian landmass:The HimalayasThe Coastal PlainsThe Northern Plains (sometimes referred to as the Indo-Gangetic plains)The Peninsular PlateauThe Desert, and lastlyThe IslandsOut of these, the plains are the most abundant relief feature found in India. Approximately 42% (or 7,00,000 sq km) of the Indian peninsula is occupied by the famous Indo-Gangetic plains. It is supplied with some of the major river systems in the Indian subcontinent such as the Ganga river, the Brahmaputra river,  the Yamuna river, etc. facilitating irrigation, farming and industrial growth.