India and Sri Lanka have agreed to jointly build in two stages a 135-megawatt solar power plant in the island nation's eastern port district of Trincomalee to promote renewable energy. Sri Lankan Cabinet has given approval for the project as the country aims to generate 70 per cent of its electricity requirement by 2030 from renewable energy sources. "The National Thermal Power Corporation of India and the Ceylon Electricity Board have entered into an agreement to jointly implement a solar power project in two stages," said a note from the Cabinet meeting held this week.