Section 3(1) in The Haryana and Uttar Pradesh (Alteration of Boundaries) Act, 1979
(1)As from the appointed day, the boundary between the Karnal and Sonepat districts of the State of Haryana and the Saharanpur, Muzaffarnagar and Meerut districts of the State of Uttar Pradesh and the boundary between the Gurgaon district of the State of Haryana and the Bulandshahr and Aligarh districts of the State of Uttar Pradesh which at present is the deep stream of the river-Yamuna, shall be altered to and replaced by fixed boundaries.
