Papagni River is a non-perennial, inter-state river in

southern India South India, also known as Dakshina Bharata or Peninsular India, consists of the peninsular southern part of India. It encompasses the Indian states of Andhra Pradesh, Karnataka, Kerala, Tamil Nadu, and Telangana, as well as the union territ ...

that flows through the states of

Karnataka Karnataka (; ISO: , , also known as Karunāḍu) is a state in the southwestern region of India. It was formed on 1 November 1956, with the passage of the States Reorganisation Act. Originally known as Mysore State , it was renamed ''Karnat ...

and

Andhra Pradesh Andhra Pradesh (, abbr. AP) is a state in the south-eastern coastal region of India. It is the seventh-largest state by area covering an area of and tenth-most populous state with 49,386,799 inhabitants. It is bordered by Telangana to the ...

. It is a right bank tributary of the Pennar river.

Etymology

''Pāpāgni'' is a

compound Compound may refer to: Architecture and built environments * Compound (enclosure), a cluster of buildings having a shared purpose, usually inside a fence or wall ** Compound (fortification), a version of the above fortified with defensive struc ...

of the words ''pāpa'' (meaning sin) and ''agni'' (meaning

fire Fire is the rapid oxidation of a material (the fuel) in the exothermic chemical process of combustion, releasing heat, light, and various reaction products. At a certain point in the combustion reaction, called the ignition point, flames a ...

). According to legend a king who once killed an innocent tribal chieftain of the Chenchus, who live in this region, was afflicted by

leprosy Leprosy, also known as Hansen's disease (HD), is a long-term infection by the bacteria ''Mycobacterium leprae'' or ''Mycobacterium lepromatosis''. Infection can lead to damage of the nerves, respiratory tract, skin, and eyes. This nerve damag ...

as punishment for his sin. He was supposedly cured of the affliction only after he undertook penance in the Papagni valley and took a dip in the river upon which the river is said to have turned his sins to ashes thus acquiring for itself the name ''Pāpāgni''.

Course

The Papagni originates in the Nandi Hills of

Chikkaballapur district Chikkaballapura district is a district in the state of Karnataka, India. On 23 August 2007, it was carved out of the pre-existing Kolar district which was the fourth largest district (before bifurcation) of Karnataka by moving the talukas of Ga ...

in Karnataka. It is a non-perennial river that is rainfed with its basin receiving 60–80 cm of rainfall annually. It traverses through a region of

granitic A granitoid is a generic term for a diverse category of coarse-grained igneous rocks that consist predominantly of quartz, plagioclase, and alkali feldspar. Granitoids range from plagioclase-rich tonalites to alkali-rich syenites and from quartz- ...

deposits and

red soil Red soil is a type of soil that typically develops in warm, temperate, and humid climates and comprise approximately 13% of Earth's soils. It contains thin organic and organic-mineral layers of highly leached soil resting on a red layer of alluv ...

that is frequently affected by soil erosion. It drains the districts of Kolar in Karnataka and the districts of

Chittoor Chittoor is a city and district headquarters in Chittoor district of the Indian state of Andhra Pradesh. It is also the mandal and divisional headquarters of Chittoor mandal and Chittoor revenue division, respectively. The city has a popu ...

, Anantapur and

Kadapa Kadapa (colonial spelled Cuddapah) is a city in the southern part of Andhra Pradesh, India. It is located in the Rayalaseema region, and is the district headquarters of YSR Kadapa district. As of the 2022 Census of India, the city had a popul ...

in Andhra Pradesh. The basin covers an area of 8,250 km². and drains 30

mandals A tehsil (, also known as tahsil, taluka, or taluk) is a local unit of administrative division in some countries of South Asia. It is a subdistrict of the area within a district including the designated populated place that serves as its administr ...

of which 21 lie in the Rayalseema region of Andhra Pradesh. It joins the Pennar near Kamalapuram in Andhra Pradesh.

Land use pattern

Although flowing through a largely semi-arid region, wet cultivation including that of paddy and

wheat Wheat is a grass widely cultivated for its seed, a cereal grain that is a worldwide staple food. The many species of wheat together make up the genus ''Triticum'' ; the most widely grown is common wheat (''T. aestivum''). The archaeologi ...

are undertaken along the Papagni's banks.

Black Black is a color which results from the absence or complete absorption of visible light. It is an achromatic color, without hue, like white and grey. It is often used symbolically or figuratively to represent darkness. Black and white ...

loamy Loam (in geology and soil science) is soil composed mostly of sand (particle size > ), silt (particle size > ), and a smaller amount of clay (particle size < ). By weight, its mineral composition is about 40–40–20% concentration of sand–sil ...

and

s are found in the river basin area. 60% of the river basin comprises cultivated,

fallow Fallow is a farming technique in which arable land is left without sowing for one or more vegetative cycles. The goal of fallowing is to allow the land to recover and store organic matter while retaining moisture and disrupting pest life cycl ...

and culturable wastelands while another 15% is under forests. The forests here are mostly

dry deciduous forest The tropical and subtropical dry broadleaf forest is a habitat type defined by the World Wide Fund for Nature and is located at tropical and subtropical latitudes. Though these forests occur in climates that are warm year-round, and may receive ...

thorn forest A thorn forest is a dense scrubland with vegetation characteristic of dry subtropical and warm temperate areas with a seasonal rainfall averaging . Regions Africa Is present in the southwest of Africa with smaller areas in other places of Africa. ...

s and scrub. The

yellow-throated bulbul The yellow-throated bulbul (''Pycnonotus xantholaemus'') is a species of songbird in the bulbul family of passerine birds. The species is endemic to southern peninsular India. They are found on scrub habitats on steep, rocky hills many of which ...

, starred tortoise,

red sand boa ''Eryx johnii'' is a species of nonvenomous snake in the subfamily Erycinae of the family Boidae. The species is endemic to Iran, Pakistan, and India. There are no subspecies which are recognized as being valid. Common names include: Indian sand ...

and the Kolar leaf-nosed bat are among the major

threatened species Threatened species are any species (including animals, plants and fungi) which are vulnerable to endangerment in the near future. Species that are threatened are sometimes characterised by the population dynamics measure of '' critical depen ...

of fauna found here.

Environmental issues

The river has faced serious damage in recent years due to various human activities. Unregulated and excessive

sand mining Sand mining is the extraction of sand, mainly through an open pit (or sand pit) but sometimes mined from beaches and inland dunes or dredged from ocean and river beds. Sand is often used in manufacturing, for example as an abrasive or in conc ...

in the

riverbed A stream bed or streambed is the bottom of a stream or river (bathymetry) or the physical confine of the normal water flow ( channel). The lateral confines or channel margins are known as the stream banks or river banks, during all but flood ...

has led to falling

groundwater Groundwater is the water present beneath Earth's surface in rock and soil pore spaces and in the fractures of rock formations. About 30 percent of all readily available freshwater in the world is groundwater. A unit of rock or an unconsolidated ...

levels in the river basin, besides damaging civil structures on and near the river and has led to both a deepening of the riverbed and deterioration in the quality of groundwater. Restoration activities under the Foundation for Ecological Security through community participation towards maintenance of

check dam A steel check dam A check dam is a small, sometimes temporary, dam constructed across a swale, drainage ditch, or waterway to counteract erosion by reducing water flow velocity. Check dams themselves are not a type of new technology; rather, th ...

s, curbing grazing and felling of trees has however led to a revival of the river leading to rising groundwater levels and an increase in tree cover. The success with the Papagni is now being seen as a possible model for the rejuvenation of the

Arkavathy river The Arkavati is an important mountain river in Karnataka, India, originating at Nandi Hills of Chikkaballapura district. It is a tributary of the Kaveri, which it joins at 34 km south of Kanakapura, Ramanagara District called Sangama in ...

in Karnataka.

References

{{coord, 14, 35, N, 78, 42, E, display=title, region:IN_type:river_source:GNS-enwiki Rivers of Andhra Pradesh Rivers of Karnataka Penner River Rivers of India