Tinkar is a village in the Byans Rural Municipality of Darchula District in the Sudurpashchim province of Nepal.

Mahakali serves as the western boundary of Nepal with India, beyond which lies the Indian region of Kumaon (part of the Uttarakhand state).

A third village called Ghaga, at the confluence of Tinkar and Nampa rivers, is populated by other classes of people.

This pass is however insignificant for the overall economy of Nepal because the far-western region is cut off from the rest of the country by "high impassable mountains and glaciers".

[12][13] According to the Himalayan Gazetteer, the entire Byans region to the south as well as north of the Mahakali River used to be part of Kumaon.

In that year, the Anglo-Nepalese War saw the British general Ochterlony evict the Nepalese from Garhwal and Kumaon across the Mahakali River.

[17][18] Since the British operated an open border with Nepal, allowing free movement of people across it, the normal intercourse of the Tinkaris with their fellow Byansis on the Indian side is likely to have continued unhindered.

[24] According to The Rising Nepal, a checkpost was established at the Tinkar village around 1972, by an Assistant Sub-Inspector, who was also in charge of patrolling up to Chhangru.

According to the Chairperson of the Byas Rural Municipality, Chhangru is the last Nepali village along the Mahakali river heading north.

[29] There is a walk bridge over the Mahakali River near Chhangru called Sita Pul, which allows passage between India and Nepal.

[30] During the conflict period, the area was controlled by the Maoist rebels, who charged "tax" (protection money) on wildlife trafficking through the Tinkar route.

"There is neither road access from the Nepal side to bring goods imported from Tibet nor is there [a] customs office," according to The Kathmandu Post.