The Godavari (IAST:Godāvari) is India's second longest river after the Ganga river and drains into the third largest basin in India, covering about 10% of India's total geographical area.Its source is in Trimbakeshwar, Nashik, Maharashtra.It flows east for 1,465 kilometres (910 mi), draining the states of Maharashtra (48.6%), Telangana (18.8%), Andhra Pradesh (4.5%), Chhattisgarh (10.9%) and Odisha (5.7%). The river ultimately empties into the Bay of Bengal through an extensive network of tributaries.Measuring up to 312,812 km2 (120,777 sq mi), it forms one of the largest river basins in the Indian subcontinent, with only the Ganga and Indus rivers having a larger drainage basin.In terms of length, catchment area and discharge, the Godavari is the largest in peninsular India, and had been dubbed as the Dakshina Ganga (Ganges of the South).
The Krishna River is a river in the Deccan plateau and is the third-longest river in India, after the Ganges and Godavari. It is also the fourth-largest in terms of water inflows and river basin area in India, after the Ganges, Indus and Godavari.The river, also called Krishnaveni, it is 1,400 kilometres (870 mi) long and its length in Maharashtra is 282 kilometres.It is a major source of irrigation in the Indian states of Maharashtra, Karnataka, Telangana and Andhra Pradesh.The Krishna River originates in the Western Ghats near Mahabaleshwar at an elevation of about 1,300 metres (4,300 ft), in the state of Maharashtra in central India. From Mahabaleshwar it flows to the town of Wai and continues to travel east until it empties into the Bay of Bengal.
The Ganges in India: Ganga in Bangladesh: Padma is a trans-boundary river of Asia which flows through India and Bangladesh. The 2,525 km (1,569 mi) river rises in the western Himalayas in the Indian state of Uttarakhand. It flows south and east through the Gangetic plain of North India, receiving the right-bank tributary, the Yamuna, which also rises in the western Indian Himalayas, and several left-bank tributaries from Nepal that account for the bulk of its flow.In West Bengal state, India, a feeder canal taking off from its right bank diverts 50% of its flow southwards, artificially connecting it to the Hooghly river. The Ganges continues into Bangladesh, its name changing to the Padma. It is then joined by the Jamuna, the lower stream of the Brahmaputra, and eventually the Meghna, forming the major estuary of the Ganges Delta, and emptying into the Bay of Bengal. The Ganges-Brahmaputra-Meghna system is the second largest river on earth by discharge.
The river Tungabhadra derives its name from two streams viz., the Tunga, about 147 km (91.6 miles) long and the Bhadra, about 178 km (110.9 miles) long which rise in the Western Ghats. The river after the confluence of the two streams near Shimoga, runs for about 531 km (330 miles) till it joins the river Krishna at Sangamaleshwaram in Andhra Pradesh. It runs for 382 km (237 miles) in Karnataka, forms the boundary between Karnataka and Andhra Pradesh for 58 km (36 miles) and further runs for the next 91 km (57 miles) in Andhra Pradesh. The total catchment area of the river is 69,552 km2 (26,856 Sq miles) up to its confluence with Krishna and it is 28,177 km2 (10,880 Sq miles) up to Tungabhadra Dam. It is influenced chiefly by the South-West monsoon. It is a perennial river but the summer flows dwindle to as low as 2.83 to 1.42 cumec (100 to 50 cusec)