The Lohana claim descent from the Lava son of Rama, and thus status as Suryavanshi Kshatriya and are said to be a branch of Rathor clan of Kshatriyas or Rajputs.
The Lohanas, also known as Thakkar, trace their roots in history right up to the emergence of Aryans, a linguistic of Indo-Iranians in the Indian sub-continent (which then included today's Afghanistan) making theirs the oldest surviving community in the world. According to Puranic (ancient Indian texts of lore and legends) sources the Aryan civilization was established by king Ishaku (Ikshvaku) some two or three millennia before Christ (BC). His 22nd descendant(Ref: Valmiki Ramayan; Balkand Sarg 70 shlok 38 to 43;) was the great king Raghu, a great conqueror, who established the Rahguvansh Dynasty.
It is believed by Legend that the Lohanas are descendants of the Rama (Son of King Raghu), who bore two sons: Luv and Kush. Descendants of Kush are known as Kushwaha. His younger son Luv was given the North (uttar Kaushala) of his kingdom (Refer :Valmk Ramayan Uttar Kand sarg 107], which came to be, called Luvalka or Luv's land consisting of present day Lahore (Pakistan) as it's Capital. Luv is portrayed in the Ramayana as a great warrior. In one of the episodes of the Ramayana even though he is a mere boy in the hermitage, he brings the entire army of his father Lord Rama (under the command of his uncle Laxman) to a standstill by the prowess at archery (of course along with his older brother Kush). His descendants too were cast in the same mould, but they were not satisfied with Luvalka and pushed to the west and annexed today's Afghanistan and adjoining areas.
Around 580 BC., when king Bimbisara ruled over Bharat (India), the society came to be divided into different communities based on their occupation. One of their communities was called Kshatriyas and King Luv's descendants were classed with them and came to be known as Luvanam, which was also referred to as Luvana. The Luvanas from Loharghat became known as Loharana (masters of swords; or iron ("Loha") chiefs ("Rana")), which later became Lohana.
As per their folk tales, Jashraj, who lived around between 1205 and 1231, was at his wedding mandap when he came to know that enemies were taking away cows, the holy animal worshipped by Hindus. he left his feras and went after enemies to save cows. He was assisted in war even by his own sister Harkor. Although, the enemy from Kabul was eventually defeated, and Jashraj became victorious, he was killed as a result of an enemy strategem. He has ever since been worshiped by Lohanas and Bhanushalis as Veer Dada Jashraj and his sister Harkor Pabaru is worshiped as kuladevi by the Lohana clan.