Which river originates from the southern part of Devarayanadurga hill in Tumkur district, and flows for about 221 km before joining Kaveri?

The correct answer is Shimsha River.

Key Points

•  Shimsha River originates from the southern part of Devarayanadurga hill in Tumkur district, Karnataka.
•  It is a tributary of the Kaveri River and flows for about 221 km before joining Kaveri.
•  Shimsha River is known for its scenic beauty and is a popular spot for fishing and boating.
•  Cauvery River rises at Talakaveri on the Brahmagiri range in the Western Ghats in the state of Karnataka.
• It flows for about 800 km before it falls into the Bay of Bengal.
  • Left bank tributaries:-
    • Harangi, Hemavati, Shimsha, and Arkavati.
  • Right bank tributaries:-
    • Lakshmantirtha, Kabbani, Suvarnavati, Bhavani, Noyil, and Amaravati.
• Cauvery basin extends over an area of 87,900 sq. km. which is nearly 2.7% of the total geographical area of the country.
• The Cauvery basin extends over the states of Tamil Nadu, Karnataka, Kerala, and the Union Territory of Puducherry.

Additional Information 

• Girna River is a tributary of the Tapti River in Maharashtra,
• Ghataprabha River is a tributary of the Krishna River in Karnataka.
•  Waghur River is a tributary of the Godavari River in Maharashtra.