Lakhamandal: why is it named so?

Lakhamandal is a famous Hindu temple complex situated in Jaunsar- Bawar region of Dehradun. It is approximately 129-130 kms from Dehradun.
On entering the temple the first complex you see is A temple built on the Nagar style of architecture which is famous in Northern India.
All the remains in the Temple are excavated by Archaeological survey of India.
The temple was built by Vishwakarma and it is believed that Mughal attacked on the temple.But during the rule of Britishers a wall was built on the backside of temple.In the year 2007 the nearby field was excavated again by the ASI(Archaeological survey of India) and some more remains were found ( lingams and Kalash).There are 2 idols of Dev(God) and Danav(evil) which were concierge  in the North and the south direction respectively.Moving forward you'll see a "hawan kund" which is used when Pandav Nritya is performed by villagers. Just above the havan kund there is a lingam of Dharmaraj Yudhishthir, it is the place where Pandavas used to Assemble for their Rajsabha(meeting/session).And the last lingam situated here is the most famous Shiva lingam made up of Granite. One can see one's reflection when water is poured into it.
There are 1.25 lakh Shiva lingams in the Lakhamandal area thus called Lakhamandal as per a local.
Lakha in hindi stands for "Many"and mandal for Temple or "lingams". (As per Wikipedia).
The Temple complex journey doesn't end here because it is believed that lakhamandal is spread in the area of 8-9kms  which is yet to excavated. There is much more to see in the nearby areas. Due to bad weather conditions we could not visit further.

PS:- I hope this little information would be little helpful and do take the help of other sources as well.