The first in the triangle is the town of Nahan. The picturesque capital of the former princely state of Sirmaur. The city was founded as a capital by Raja Karna Prakash in 1621. Another version recalls a saint who lived with a companiable Nahan on the site where the Nahan palace now stands Nahan means Lion and probably the town takes its name from this saint.
Nahan celebrated Bawan Dwadashi towards the end of the monsoon where 52 idols of the Gods are carried in procession to the Jagannath temple where they are floated ceremoniously in a pool and are restored at midnight to their riches. In the heart of the Nahan town there is Ranital, where a big temple and a tank from the days of Ex-rulers of Sirmaur state. Nahan 88 kms from Solan.103 kms from Ambala.