Overview

The Krishna River is one of the principal rivers of peninsular India, running roughly 1,300 kilometres from the Western Ghats to the Bay of Bengal. It is commonly cited among the longest rivers of the country and is the second-longest river in South India; its basin crosses several states and shapes much of the region's agriculture, industry and settlement patterns. Krishna River flows eastward across the Deccan plateau before emptying into the sea.

Course and basin

The river rises near the hill-station of Mahabaleshwar in the Western Ghats and travels east across a varied landscape of uplands and plains. After descending from the Ghats it traverses parts of Maharashtra, Karnataka and Telangana before forming a wide delta in Andhra Pradesh and discharging into the Bay of Bengal. The Krishna basin collects monsoon rainfall and seasonal runoff that sustain riverside irrigation, towns and wetlands. Many descriptions note its status within South India: it is often identified as the second longest river in the region, and as an important trunk river for the southern peninsula.

Tributaries and infrastructure

Several significant tributaries join the Krishna along its course. Major tributaries include:

  • Bhima — a large western tributary arising in Maharashtra
  • Tungabhadra — formed by the confluence of rivers draining the central Deccan
  • Koyna, Panchganga, Veena, Munneru and Musi — regional rivers that feed the main channel

To harness flows for water supply, irrigation and power, the basin contains several large dams and reservoirs such as Srisailam, Nagarjuna Sagar and Almatti. These projects enable year-round irrigation and hydropower generation but also require ongoing management of storage, flood control and ecological impacts.

Uses and importance

The Krishna is a primary source of irrigation and drinking water for extensive agricultural areas. It supports rice, cotton, sugarcane and other crops through canal networks and lift irrigation schemes. The river's waters are shared among states under interstate arrangements, and its reservoirs supply hydropower, municipal water and industrial demand. Irrigation from the Krishna underpins rural livelihoods across Telangana, Maharashtra, Karnataka and Andhra Pradesh.

History, environment and challenges

The river has long held cultural and economic importance for the peoples of the Deccan. Historically it supported ancient settlements and trade routes, and its delta region has been a rich agricultural zone. In modern times the Krishna basin faces challenges common to large river systems: seasonal variability tied to the monsoon, sedimentation of reservoirs, water-quality issues near urban centres, and the need to balance irrigation, power generation and ecosystem conservation. Interstate management, scientific monitoring and integrated basin planning are central to sustaining the river's multiple roles.