The Dallewalia was founded by Gulab Singh of Dallewal on the Ravi and took its main strength under Tara Singh Ghaiba, who held Rahon and a stretch of the Jalandhar Doab from the 1760s.
Tara Singh Ghaiba was one of the more capable sardars of the second generation and held about seven hundred villages at his height. He was among the misl leaders who went with the 1783 expedition to Delhi.
He died in 1807 and Ranjit Singh Ji annexed the territory immediately, before the succession could settle. That was the standard method with the Doaba misls.
Rahon is a small town now with a mound and a bazaar. Nothing on the ground says a misl was run from it.
The name comes from Dallewal, a village on the Ravi, and the founder was a Jat of no particular standing. Several of the twelve are named for a village of no consequence whatever, which is a reminder that a misl was a band of riders before it was ever a territory.
Rahon stands on an old bank of the Sutlej in Shaheed Bhagat Singh Nagar district. The mound there is the accumulated debris of a town occupied for a very long time and it has never been excavated.
The misl name survives as a surname carried by families whose ancestors served it. That is the common fate of the misls. The territory went and the name became a family name.