<h1>Opposition alleges union minister lobbied for 20% ethanol petrol policy benefiting sons' firms; calls for Lokpal probe</h1> An opposition party has alleged conflict of interest against a union minister, claiming he lobbied for a nationwide 20% ethanol-blended petrol policy from which firms tied to his sons benefited, citing sharp revenue and share-price gains; the ruling party dismissed the charges as baseless. The Supreme Court recently dismissed a public interest litigation challenging the EBP-20 rollout. The opposition urged a Lokpal probe and questioned environmental rollbacks, fuel pricing claims and potential undue enrichment, while the government called for substantiated evidence and accused the opposition of politicising the issue.