[3][4] In 1907, the Manipur government opened the "Jiribam valley" between the rivers and the Vangaitang range for agricultural settlement,[5] which attracted settlers from Cachar, including Bengalis as well as Meiteis.

After the independence of India, a Jiribam subdivision was defined in Manipur to encompass the Vangaitang range from the east–west stretch of the Jiri River in the north to Tipaimukh in the south.

In 2012, the fifth round of "environmental hearings" for the proposed oil and gas exploration by Jubilant Energy in Pherzawl and neighbouring districts were held at Ankhasuo.

[9] The civil society organisations of the region expressed their opposition to the exploration, citing the absence of flow of information and consensus seeking behind the efforts.

[9] The convener of the Committee on Protection of Natural Resources in Manipur said that, since all five public hearings raised objections from people, Jubilant should "pack up and leave".