Ratia is a city and a municipal committee on the banks of Ghaggar River 23 north of district headquarter Fatehabad in Fatehabad district in the Indian state of Haryana.
Town is named after the a Hindu sadhu, Rattan Nath.
During the Chalisa famine of 1783-84, the people abandoned this town, which was repopulated in 1816 during british raj by a person named Rattan Singh (not to be fonfused with the founder Rattan Nath). The Maharaja of Patiala State constructed a fort here as an outpost.
Source : Wikipedia