Mandsaur is a city and a municipality in Mandsaur district located on the border of Mewar and Malwa regions of Madhya Pradesh, a state in Central India. It is the administrative headquarters of Mandsaur District. The ancient Pashupatinath Temple is located in Mandsaur. Later come under Gwalior state Which was 2nd biggest state. Mandsaur is famous for its opium farming.

Mandsaur is identified with the city of Daśapura, which is attested in various ancient and medieval texts and inscriptions. According to the 12th-century Jain work called the Pariśiṣṭaparvan, the name Daśapura was given to the city by a group of merchants visiting the royal fortress of a king named Udayana and his ten sons.

Epigraphical discoveries have brought to light two ancient royal houses, who call themselves as Aulikaras and ruled from Dashapura (present-day Mandsaur). The first dynasty, who ruled from Dashapura from the beginning comprised the following kings in the order of succession: Jayavarma, Simhavarma, Naravarma, Vishvavarma and Bandhuvarma. The Risthal stone slab inscription discovered in 1983 has brought to light another Aulikara dynasty, which comprised the following kings in the order of succession: Drumavardhana, Jayavardhana Ajitavardhana, Vibhishanavardhana, Rajyavardhana and Prakashadharma. After Parakshadharma, the ruler of Mandsaur was Yashodharma, who is identified with Vishnuvardhana, who erected a pillar of victory at Bayana due to which Bayana's name became Vijaygarh. In all probabilities, he was the son and immediate successor of Prakashadharma.

Sondani (सोंधनी) is a small village at a distance of about 4 km from Mandsaur situated on Mahu-Nimach Highway towards Mahu. In a part of the inscription Yasodharman praises himself for having defeated king Mihirakula:

"He (Yasodharman) to whose two feet respect was paid, with complimentary presents of the flowers from the lock of hair on the top of (his) head, by even that (famous) king Mihirakula, whose forehead was pained through being bent low down by the strength of (his) arm in (the act of compelling) obeisance"

— Sondani pillar inscription

The Gurjara Pratihara empire was extended up to Mandasor during the reign of Mahendrapala II.

There are two gardens in which there is a pillar of torandwar. It is believed to be pillar of Surya Mandir of the inscription of Bandhu Varma. There is a Shiva statue also in the garden.

The Battle of Mandsaur took place in Mandsaur, India between the Maratha Army and Jai Singh II of Amber. In February 1732, the Marathas completely surrounded Jai Singh with their enormous cavalry and started cutting of his supplies. The Jaipur Raja was forced to sue for peace, he offered the Marathas six lakhs, but Holkar refused and demanded more. While the negotiations were taking place, a rumour surfaced about reinforcements from the emperor. This raised the morale of the Jaipur army and the Rajputs got ready for battle, the Marathas quickly attacked the rearguard of the Jaipur army and killed its commander. The Rajputs also attacked and killed fifteen Maratha officers in the fight that followed. Holkar and his men retreated 30 miles away from the battlefield. Jai Singh followed them but was outpaced by the Maratha cavalry who reached Jai Singhs camp and forced him to surrender. Jai Singh was forced to give six lakhs to Holkar and allow him to collect chauth from 28 pargana's in Malwa. The Maratha victory at the Battle of Mandsaur had the following consequences: Scindias and Holkars were emboldened to renew their attack on Rajputana. Kota and Bundi were made the next targets in the same year by the Marathas.

In 19th century before India's independence in 1947, Mandsaur was part of the princely state of Gwalior. It gave its name to the treaty with the Holkar Maharaja of Indore, who concluded the Third Anglo-Maratha War and the Pindari War in 1818. At the turn of the 20th century it was a centre of the Malwa opium trade.

Mention of Dashpur can be found in Kalidas poem Meghdoot (Purva-megha) 47th stanza. Kalidas writes about the beauty of the eyes of women from Dashpur in his aesthetic piece of words.

Mandsaur district is bordered by Neemuch and Ratlam districts of Madhya Pradesh and Chittorgarh, Kota, Jhalawar, Pratapgarh and Bhilwara districts of Rajasthan.

Mandsaur district forms the northern projection of Madhya Pradesh from its western Division, i.e., Ujjain Commissioner's Division. It lies between the parallels of latitude 230 45' 50" North and 250 2' 55" North, and between the meridians of longitude 740 42' 30" East and 750 50' 20" East.

The district is an average size district of Madhya Pradesh. It extends for about 142 km (88 mi) from north to south and 124 km (77 mi) from east to west. The total area is 5,521 km (2,132 sq mi) with a population of 1,16,483 in 2001.

Mandsaur District in Madhya Pradesh exhibits a rich cultural tapestry influenced by Rajasthani traditions, particularly the Malwi & Mewari culture. This unique blend is evident in local festivals, music, and crafts, reflecting vibrant Rajasthani customs while integrating regional nuances. The Malvi dialect, a variant of Rajasthani Language, enriches daily communication and cultural expressions. Traditional attire and cuisine also reveal a fusion of Rajasthani styles with local flavors.

As of 2011 India census, Mandsaur had a population of 141,468 male population was 72,370 and female population was 69,098, giving a sex-ration of 898. Mandsaur had an effective literacy rate of 86.79%, higher than the national average: male literacy was 92.74, and female literacy was 80.60%. 15,721 (11.1%) of the population was under 6 years of age.

The institutes and universities headquartered in Mandsaur include:

• Mandsaur Institute of Technology
• Mandsaur University
• Sunder lal patwa Govt medical College Mandsaur

•  This article incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). "Mandasor". Encyclopædia Britannica. Vol. 17 (11th ed.). Cambridge University Press. p. 559.