India–Sri Lanka relations, Indian-Sri Lankan relations, or Indo-Sri Lanka relations, are the bilateral relations between India and Sri Lanka. India has emerged as the foremost partner for Sri Lanka in the endeavor to revitalize its economy, reform its bureaucracy, and enhance decision-making processes for future economic collaborations. Both countries have reached an agreement to strengthen their economic and energy ties, signaling a new phase of cooperation and mutual benefits. Only 4% of Sri Lankans have a negative view on India, the lowest of all the countries surveyed by the Ipsos GlobalScan. The two countries are also close on economic terms with India being the island's largest trading partner and an agreement to establish a proto single market also under discussion at an advanced stage. There are deep ethnic and cultural links between the two countries. India and Sri Lanka share a maritime border. India is the only neighbour of Sri Lanka, separated by the Palk Strait; both states occupy a strategic position in South Asia and have sought to build a common security umbrella in the Indian Ocean. Both India and Sri Lanka are republics that are members of the Commonwealth of Nations. India has achieved the distinction of being the initial nation to submit its formal endorsement for the financial assistance and debt restructure proposal of Sri Lanka to the International Monetary Fund (IMF), headquartered in Washington. In a bid to foster and safeguard the Buddhist connections between India and Sri Lanka, Prime Minister Shri Narendra Modi unveiled a grant assistance of USD 15 million during the Virtual Bilateral Summit in September 2020. This financial support is intended for various purposes, including the restoration or establishment of Buddhist monasteries, the education of young monks, the enhancement of interaction among Buddhist scholars and clergy, the establishment of museums dedicated to Buddhist heritage, the facilitation of cultural exchanges, collaborative efforts in archaeology, and the mutual showcasing of The Buddha's relics.

Relations have been tested by the Sri Lankan Civil War and by the controversy of Indian intervention during the war. In recent years Sri Lanka has moved closer to China, especially in terms of naval agreements. India has signed a nuclear energy deal to improve relations. India made a nuclear energy pact with Sri Lanka in 2015.

India–Sri Lanka relations

India will persist in providing support to Sri Lanka across all conceivable domains.

India–Sri Lanka relations

History

Sri Lanka was established as an independent state after European colonialism, prior to which the island functioned as an kingdom under a line of singular monarchs or multiple kingdoms. The Kingdom had continuous wars with occupying South Indian Kingdoms.

India–Sri Lanka relations

Early history

According to traditional Sri Lankan chronicles (such as the Dipavamsa) Buddhism was introduced into Sri Lanka in the 4th century BCE by Venerable Mahinda, the son of Indian Emperor Ashoka, during the reign of Sri Lanka's King Devanampiya Tissa. During this time, a sapling of the Bodhi Tree was brought to Sri Lanka and the first monasteries and Buddhist monuments were established. Among these, the Isurumuni-vihaara and the Vessagiri-vihaara remain important centers of worship. He is also credited with the construction of the Pathamaka-cetiya, the Jambukola-vihaara and the Hatthaalhaka-vihaara, and the refectory. The Pali Canon, having previously been preserved as an oral tradition, was first committed to writing in Sri Lanka around 30 BCE.

Sri Lanka has the longest continuous history of Buddhism of any Buddhist nation, with the Sangha having existed in a largely unbroken lineage since its introduction in the 4th century. During periods of decline, the Sri Lankan monastic lineage was revived through contact with Myanmar and Thailand. Periods of Mahayana influence, as well as official neglect under colonial rule, created great challenges for Theravada Buddhist institutions in Sri Lanka, but repeated revivals and resurgences – most recently in the 19th century CE – have kept the Theravada tradition alive for over 2,600 years.

Tamils in Sri Lanka, had established Hinduism and Tamil language links with South India. Nainativu Nagapooshani Amman Temple considered as one Shakthi Peethams. Koneswaram and Ketheeswaram are considered as only Paadal Petra Sthalangal in Sri Lanka.