Paleolithic era (100,000 BP) In the forested area where the Surajkund and the Anagpur Dam are located, ancient
Stone Age relics have been found which are
microliths (stone tools) belonging to
Lower Paleolithic era. These were found at 43 sites from Ankhir (a village 17 km east of Mangar Bani) in south to north along Anangpur-Angnpur Dam-Surajkund-Tughlaqabad axis. These sites are on the '
Tughlaqabad-Surajkund Road' and south of 'Surajkund-
Faridabad Road', on Anangpur hills, and on Ankhir hill, and on the road embracing the low ridge from Faridabad (Ankhir) to Surajkund. From a study of the prehistoric findings along the ridges of Surajkund reservoir, Anagpur Dam, and around Delhi and adjoining parts of Haryana, it has been inferred that the southern hilly area of Delhi and Haryana was environmentally suited for pre-historic man to settle here. Paleolithic tools, rock paintings and rock art found in 2021 at various sites scattered inside the
Mangar Bani might be extension of Anangpur-Surajkund Paleolithic sites.
Medieval history According to
Hindu hagiography, the
Dilli Mahatam, the Surajkund was earlier known as the
Prabhashkund where sage
Vishwamitra used to live, pray and worship.
Tomara dynasty (8th - 11th century CE) Anangpal I, first king of
Tomar dynasty (c.736- 1052 CE), declared himself an independent ruler and established the Tomar Rajput dynasty of Delhi in the early 8th century. He built his capital in this village and expanded his kingdom from there. He is said to have built numerous palaces and temples during his reign, the majority of which are diminished now. Last king of this dynasty was
Anangpal Tomar (Anangpal II), who had built Delhi's
Lal Kot, which was later renovated by Chauhan ruler and also came to be known as the Qila Rai Pithora. Tomar dynasty were overthrown by another Rajput dynasty, the
Chahamanas of Shakambhari. The last Chahamana or Chauhan king was
Prithviraj Chauhan (the second last
Hindu king of Delhi), Qila Rai Pithora (earlier called Lal Kot) was renamed after him. Though historians have not specifically alluded to this tank, it is also said that it was built in 686 AD by Surajmal (after whom the tank is probably named) son of Anang PalI. It is in the form of a segment (semi circular) with the chord on its west side. It is also said that Surajmal built this lake for his daughter.
Chauhan dynasty (12th century CE) The Tomara's rule was followed by that of the Chahamanas and the
mlechchha Sahavadina (
Shihab ad-Din).
Sultanate era renovation (1351–88 CE) During the
Tughlaq Dynasty rule of
Feroz Shah Tughlaq (1351–88), the reservoir was refurbished by rebuilding the steps and terraces with stones in lime mortar. On the western bank of the reservoir, a
garhi (cave like structure) was built close to the ancient site of the Sun temple. == Surajkund==