George Thomas a native of Ireland and uncrowned ruler of the territory between Sirsa and Rohtak got this monument built for his residence. Owing to its isolated position it appears like a ship in the ocean and thereby won the name Jahaj Kothi. It might have also got its name due to distortion of the word George to Jahaj over the years by the locals.
After the defeat of George by the Britishers, James Skinner became the ruler of this territory. He used Jahaj Kothi for some time before the construction of his residential palaces at Hansi.