The India-China Bilateral Relations is a complex, multi-faceted concept in international relations that defines the political, economic, and strategic interactions between the Republic of India and the People's Republic of China (PRC). Diplomatic relations were formally established on April 1, 1950, when India became the first non-socialist bloc country to recognize the PRC.
The relationship's foundation was the 1954 Sino-Indian Agreement, also known as the Panchsheel Agreement, signed on April 29, 1954, which outlined the Five Principles of Peaceful Coexistence: mutual respect for sovereignty, non-aggression, non-interference, equality and mutual benefit, and peaceful coexistence. This agreement, which also concerned trade and intercourse with the Tibet region of China, aimed to promote harmonious relations but failed to prevent the major setback of the 1962 Sino-Indian War.
The relationship is primarily governed by a framework of agreements designed to manage the unresolved boundary question along the Line of Actual Control (LAC). Key mechanisms include the Agreement on the Maintenance of Peace and Tranquility along the LAC signed in 1993, and the Agreement on Confidence-Building Measures in the Military Field along the LAC signed in 1996. The Special Representatives (SRs) mechanism was established in 2003 to explore a boundary settlement, and the Working Mechanism for Consultation and Coordination on India-China Border Affairs (WMCC) was signed in 2012 to manage border issues.
The relationship was severely strained by the military standoff in Eastern Ladakh in April-May 2020, which led to the Galwan Valley clash. Since then, the focus has shifted to disengagement and de-escalation through the WMCC and Senior Commanders' Meeting (SCM). Recent developments in 2025 and 2026 indicate a cautious move toward normalization, with discussions on restoring direct flights, visas, and cross-border trade mechanisms, even as the trade deficit remains a significant concern.