India has significantly expanded its regional influence through major infrastructure and development projects across South Asia, according to recent diplomatic engagements and project inaugurations [1][3].

Prime Minister Narendra Modi's recent visit to Sri Lanka marked a milestone in bilateral relations, with the signing of seven key agreements including the country's first defense cooperation MoU and plans to develop Trincomalee as an energy hub [4].

The Sri Lankan President Anura Kumara Dissanayake conferred their highest civilian honor, the Sri Lanka Mitra Vibhushana, on Modi and pledged that Sri Lankan territory would not be used against Indian interests [2].

Beyond Sri Lanka, India has executed significant projects across the region [1]:- Nepal: Operationalized cross-border railway links and petroleum pipelines- Bangladesh: Inaugurated the Maitree Super Thermal Power Project and rail connectivity initiatives- Bhutan: Established healthcare facilities and hydroelectric projects- Maldives: Implemented water, sanitation and coastal development projects

India has committed substantial financial resources to these initiatives, including a $1 billion reconstruction package for Nepal following the 2015 earthquake and debt restructuring agreements with Sri Lanka to provide immediate economic relief [1][4].

The projects align with India's 'Neighbourhood First' policy and 'Vision MAHASAGAR,' focusing on physical, digital, energy and people-to-people connectivity across South Asia [2].