New Delhi, The proposed 5 per cent blending of biogas with natural gas supplies in the country can cut LNG imports worth USD 1.17 billion annually, says a study by the Indian Biogas Association (IBA). The study comes against the backdrop of the government’s recent mandate to blend one per cent biogas with piped natural gas (PNG) supplies in the country from April 1, 2025 under the compressed biogas blending obligation (CBO) scheme.