evidence: The Kalapani issue is a proverbial thorn in the otherwise rosy India-Nepal relations. It is a territorial dispute between the two that has acquired many political dimensions over the years. [...] The origins of the Kalapani dispute can be traced back to 1816, when the Treaty of Sagauli was ratified following the end of the Anglo-Nepal war. The name Kalapani is derived from the river Kali that flows in the region. The Kali river marked the boundary of the Kingdom of Nepal and that of British India. [...] Following this Nepal released a new political map showing the parts of Uttarakhand and Bihar along with all of Kalapani valley as part of Nepal. No motive for these new claims was given.