India offered a ₹4,000 crore concessional credit line—about $480 million—to Bhutan for renewable-energy ventures. The initiative deepens regional energy cooperation through hydro and solar development. Officials described the package as part of India’s expanding South-Asian sustainability diplomacy. It aims to strengthen power-grid integration, cross-border electricity trade, and mutual climate goals. Analysts said the partnership reinforces New Delhi’s leadership in green-finance outreach and builds momentum for self-reliant clean-energy ecosystems across the Himalayan region.