Chauhan, Chouhan or Chohan , (Gujarati

Gujarati language

Gujarati is an Indo-Aryan language, and part of the greater Indo-European language family. It is derived from a language called Old Gujarati which is the ancestor language of the modern Gujarati and Rajasthani languages...

:ચૌહાણ), (Punjabi

Punjabi language

Punjabi is an Indo-Aryan language spoken by inhabitants of the historical Punjab region . For Sikhs, the Punjabi language stands as the official language in which all ceremonies take place. In Pakistan, Punjabi is the most widely spoken language...

:ਚੌਹਾਨ) - is a clan who ruled parts of northern India in the Middle Ages. The clan is most famous for Rajput

Rajput

A Rajput is a member of one of the patrilineal clans of western, central, northern India and in some parts of Pakistan. Rajputs are descendants of one of the major ruling warrior classes in the Indian subcontinent, particularly North India...

 King Maharaja Prithviraj Chauhan. Prithviraj Chauhan was last Hindu king of Delhi

Delhi

Delhi , officially National Capital Territory of Delhi , is the largest metropolis by area and the second-largest by population in India, next to Mumbai. It is the eighth largest metropolis in the world by population with 16,753,265 inhabitants in the Territory at the 2011 Census...

.

The Chauhan clan is predominantly of Rajput

Rajput

A Rajput is a member of one of the patrilineal clans of western, central, northern India and in some parts of Pakistan. Rajputs are descendants of one of the major ruling warrior classes in the Indian subcontinent, particularly North India...

s and has also been found in Jats

Jat people

The Jat people are a community of traditionally non-elite tillers and herders in Northern India and Pakistan. Originally pastoralists in the lower Indus river-valley of Sindh, Jats migrated north into the Punjab region in late medieval times, and subsequently into the Delhi Territory,...

, and Gurjars as well.
According to the Rajput

Rajput

A Rajput is a member of one of the patrilineal clans of western, central, northern India and in some parts of Pakistan. Rajputs are descendants of one of the major ruling warrior classes in the Indian subcontinent, particularly North India...

 bards, Chauhan is one of the four Agni-Kul or 'fire sprung' clans, deriving their origin from a sacrificial fire-pit (agnikunda) at Mount Abu to fight against the Asura

Asura

-In Hinduism:In Hinduism, the Asuras constitute a group of power-seeking deities, sometimes considered sinful and materialistic. The Daityas and Danavas were combinedly known as Asuras. The Asura were opposed to the Devas. Both groups are children of Kasyapa...

s or demons.