How did Bhutan’s 1949 treaty with India shape relations between the two countries?

The 1949 treaty between Bhutan and newly independent India was a pivotal agreement that established a framework for their modern bilateral relationship. Under this arrangement, India assumed the role previously held by Great Britain regarding Bhutan’s external affairs.12

Key aspects of the treaty included:

• Noninterference: India committed to refraining from interfering in Bhutan’s internal administration.12
• Financial Support: India agreed to pay an annual subsidy to Bhutan.12
• Territorial Adjustment: A strip of land in the Duars of Assam, known as the Dewangiri, was transferred to Bhutan.12

This treaty laid the foundation for deep cooperation, particularly as Bhutan faced regional security concerns. Following China's control of Tibet in 1950, the relationship became increasingly strategic; India took measures to strengthen defensive garrisons along Bhutan’s northern border and supported the development of road networks, which helped end Bhutan’s long-standing geographical isolation. Today, this partnership remains vital, with India guaranteeing security against external threats and maintaining significant investment in Bhutan’s development.1234