It is a part of the Shamli district (prior to 2012, Kairana was a tehsil of Muzaffarnagar district) and one of the five assembly constituencies in the Kairana Lok Sabha constituency.
Kairana Assembly constituency came into existence in 1955 as a result of the "Final Order DC (1953-1955)".
The extant and serial number of this constituency was last defined in "Delimitation of Parliamentary and Assembly Constituencies Order, 2008".
[1][2][3] Kairana assembly constituency comprises Ailum,Gagor, Un, Chausana-1, Chausana-2, Toda, Khodsama, Shamli-Shamla, Ballamajara, Bajheri, Kera Bhau, Nai Nangla, Dathera, Baheda, Sakoti, Udpur, Machhrauli, Lawa Daudpur of Un KC, Jhinjhana KC, PCs Kairana 1 & 4, Kairana 2, Kairana 3, Mohammadpur Rai, Ramra, Panjeeth, Mamaur, Teetarvada, Unchagaon, Airati, Kandela, Dundookheda, Issopur of Kairana KC, Un NP, Jhinjhana NP & Kairana NPP of Kairana Tehsil.
[3] 17th Vidhan Sabha: 2017 Assembly Elections.