|Elevation||262 m (860 ft)|
|Time zone||IST (UTC+5:30)|
|ISO 3166 code||IN-HR|
|Vehicle registration||HR 34 and HR 66|
Mahendragarh is a city and a municipal committee in Mahendragarh district in the north Indian state of Haryana. It takes only 2 hours to reach Mahendragarh and is 100.0 km away from Gurgaon and comes under National Capital Region (India).
Mahendragarh is located at  It has an average elevation of 262 metres (859 feet). Mahendragarh district is bounded on the north by Bhiwani and Rohtak districts, on the east by Rewari district and Alwar district of Rajasthan, on the south by Alwar, Jaipur and Sikar districts of Rajasthan, and on the west by Sikar and Jhunjhunu districts of Rajasthan. It has four tehsils of Narnaul, Kanina,Nangal choudhary And Mahendergarh..
It is named after Maharaja Mahendra Singh Patiala who was the ruler during the Mughal era in 1721-1748. It is situated at the bank of Dohan river (which was a seasonal river), which is at the verge of extinction.
Rao Shekha, a Shekhawat rajput (sub-branch of Kachwaha or Kushwaha), was the founder of Shekhawati, who originally divided Shekhawati into 33 Thikana (also called a Pargana), each styled as Thakur with at least a 'kuccha' mud fort, some of which were fortified further with stone. After him, additional thikanas were granted to the descendants of subsequent generations.
- Loharu Thikana, Loharu was founded as 33rd Thikana in the year 1588 A.D by the Thakur Narhar Das, a decedent of Rao Shekha.
- Tosham Shekhavati Thikana, It was granted as a thikana by Shekhawati ruler Maharaja Mukund Singh in 1870 to Kunwar Abhaya Singh, the son of Maharaja Raj Singh II.
- Madhogarh Thikana and Madhogarh Fort were founded by Madho Singh I in the first half of the 18th century, when he placed the area under the control of his son Balwant Singh.
- Mahendragarh Thikana, was granted by 'Maharaja Mukund Singh of Shekhawati in 1868 to Kunwar Sheonath Singh I, the son of Maharaja Raj Singh II. Around 1755, Rajputs of this area and all of central and south Haryana came under the Maratha Empire under Maharaja Khande Rao Holkar of Indore when he attacked the independent Mughal chieftain Ismail Beg, Ismail Beg escaped to Madhogarh and established a post near Madhogarh fort, captured Ismail Beg at kanud, imprisoned him at Agra Fort and put him to death on 1794. Maratha Maharaj Mahadaji Shinde (Scindia) of Gwalior had conquered Rania, Fatehabad and Sirsa from Bhatti Rajput Muslims. Haryana came under Maratha Empire. Mahad ji divided Haryana in four territories: Delhi (Mughal emperor Shah Alam II, his family and areas surrounding Delhi), Panipat (Kernal, Sonepat, Kurukshetra and Ambala), Hisar (Hisar, Sirsa, Fatehabad, parts of Rohtak), Mewat (Gurugaon, Rewari, Narnaul, Mahendragarh). Daulat Rao Scindia ceded Haryana on 30 December 1803 under the Treaty of Surji-Anjangaon to British East India Company's Company rule in India. Thakurs (rulers) of Mahendragargh are:
- Kunwar Sheonath Singh I (1868-1887)
- Kunwar Jailsinath Singh (1887-1928)
- Rajkumar Jainath Singh I (1928-1954)
- Rajkumar Hajinath Singh (1954-1968)
- Rajkumar Sheonath Singh II (1968-1992)
- Shri Sahib Jainath Singh II (1992–Present)
- Sahib Adityanath Singh (crown prince)
With various leading schools and colleges, Mahendragarh has become as the education hub of India. Central University of Haryana has been established in Mahendergarh having campus area of 488 acre. Mahendragarh has various engineering colleges as well. Mahendergarh is hub of international level schools with ultra modern amenities with high class of study level where students from Delhi, Rajasthan, UP, Punjab etc. getting education to achieve their dreams. Mahendergarh has maximum number of education colleges in Haryana state. Yaduvanshi Group of Schools- More than 10 Branches of Schools- and Colleges in Haryana RPS Group of Institution- More than 12 Branches of College, Schools in Haryana and Delhi NCR. Suraj Group of Education- They have 10 Schools and 3 College, 1 Engineering College, 3 Education College across Haryana and Delhi NCR. More Schools Tagore Group of Schools- Euro Group of Schools- Modern Group of Schools Happy Evergreen Group of Education. Mahendergarh is top on the school Education in Northern India.
As of 2011 India census, Mahendragarh had a population of 60,000. Males constitute 53% of the population and females 47%. Mahendragarh has an average literacy rate of 67%, higher than the national average of 59.5%: male literacy is 76%, and female literacy is 57%. In Mahendragarh, 14% of the population is under 6 years of age. Hindus constitute 98% of the population.
In spite of being a district headquarters, there is no administrative office. All the relevant work is done in Narnaul. The very first guggul (Commiphora wightii) vatika (place where medicinal plants are planted) was established here.
Now many government offices have opened in Mahendragarh near Government Boys college in new Court.
According to Haryana District Gazetteers: Mahendragarh Ahirs and Rajputs form the agricultural backbone of the district. However Yaduvanshi Ahirs are in majority in the district. Election results are mainly influenced by Ahirs.
- Baba Ramdev - Yoga guru
- Rao Tula Ram - Freedom fighter
- Satish Kaushik - Actor/producer
- Lalit Modi - Businessman/BCCI President
- Gujarmal Modi - Founder Modi Industries and Modi Nagar
- Baba Sewanand Temple, Pathera
- Baba jairam dass temple, Pali
- Baghot dham Shiv Mandir, Baghot
- Baba Sewadas Mandir, Bihali
- Mahasar Dham Mata Mandir, Near Ateli
- Baba Narayan Das Mandir, Rathiwas Road,Khatodra
- Bala ji dham, khalda, Narnaul
- Baba kesariya Mandir, Mandola
- Shiv mandir Moda ashram, Mahendergarh
- Shree Vishvakarma Mandir, Mahendragarh
- Baba NarSingh Dass Mandir, Kanti
- Baba Guptnath Mandir, Palh
- Baba Bhikham dass mandir,kurhawata
- "Gurgaon per capita income 10 times that of Mahendragarh". Indian Express. 2013-01-19. Retrieved 2014-07-06.
- "Mahendragarh, Bhiwani included in NCR". Hindustan Times. Retrieved 2014-07-06.
- Falling Rain Genomics, Inc - Mahendragarh
- Loharu State The Imperial Gazetteer of India, 1909, v. 16, p. 169.
- The State of Loharu Indian States: A Biographical, Historical, and Administrative Survey, by Somerset Playne, R. V. Solomon, J. W. Bond, Arnold Wright. Asian Educational Services, 2006. ISBN 81-206-1965-X.Page 691.
- "Gazetteer of Mahandragarh 1988" (PDF). Haryana Revenue Department. Retrieved 12 Nov 2014.
- "Census of India 2001: Data from the 2001 Census, including cities, villages and towns (Provisional)". Census Commission of India. Archived from the original on 2004-06-16. Retrieved 2008-11-01.
- Haryana District Gazetteers: Mahendragarh - Haryana (India) - Google Books. Books.google.co.in. 2008-09-02. Retrieved 2014-07-06.
- Haryana District Gazetteers: Mahendragarh-page-67