Abstract:
India and Sri Lanka have kept up a historical link for more than 2,500 years, which has benefited both nations in
terms of politics, economy, culture, and worries about national security. Both nations have a comprehensive
awareness of, as well as support for, important topics that are of national importance. The Indian government
has a great amount of worry about the situation in Sri Lanka. This leads to a conflation of the island nation's
capabilities and closeness with larger problems of bilateral cooperation and Sri Lanka's sovereignty rights to
pick development and strategic partners. Throughout history, India has been a significant contributor to Sri
Lanka's economic growth for a number of reasons. Behind that, this study will identify the primary reasons for
the sustainable development partnership between India and Sri Lanka. Geographical and relative priority of two
nations, Ethnic conflict Sinhalese – Tamil. The civil war between Sri Lanka forces and LTTE, the China factor,
International and regional organizational approach – SAARC, UNO, IMF, World Bank, Defence-related
concerns, to maintain regional superpower- India and Religious – Buddhism and Hinduism, these are the factors
behind the relationship between India and Sri Lanka. This study will prove which more important factors lead
the two countries on one road with relevant evidence. Secondary data and historical and critical research
methods were used for this article.