Kalay, also known as Kale, is a town in the Sagaing Region of Myanmar. It is located upstream from Mandalay and Monywa on the Myittha River, a tributary of the Chindwin River. The town is the district headquarters of the Kalay District. It has gained importance with trans border movement enabled between Myanmar and India following the 165 kilometres (103 mi) Tamu–Kalay section of India–Myanmar–Thailand Trilateral Highway built by the Border Roads Organization of India under the Look-East Connectivity policy. Consequently, Kalay is now one of the fastest developing towns in Myanmar.