The Ganga basin and the Ganga of south
- The river Ganga is 2,525 km long. It rises in the gangotri glacier in the Himalayas at a height of 6000 mts. It cuts deep gorges through the Siwalik range and enters into the plain at Haridwar.
- The Ganga plain occupies an area of about 3, 37,000 sq.km covering the states of Uttar Pradesh, Bihar and West Bengal.
- The river Yamuna rises in Yamunotri glacier. After flowing for a distance of about 1300 km, it joins Ganga on its right bank at Allahabad.
- The rivers Chambal, Betwa, Son and Ken rise in the Deccan plateau and join Ganga on its right bank. The Ghandak, the Gomti, the Ghaghara and the Kosi join the Ganga on its left bank. It is covered by thick alluvial sediments.
- The Ganga plain slopes gently from Haryana and drains into Bay of Bengal. It is covered by thick alluvial sediments. The largest distributory of Ganga is Hooghly.
- Most of the Ganga Delta lies in Bangladesh. The seaward of the delta has tidel estuaries, sand banks and islands known as sunderbans.
- The Kaveri river of Karnataka and Tamil Nadu in Southern India is called the Ganga of the South.