The Supreme Court has directed the Madhya Pradesh High Court to consider whether the government's decision allowing certain collieries to charge 10 per cent premium on coal price violated the right to equality of a consumer guaranteed under Article 14 of the Constitution. Allowing an appeal by Gujarat Ambuja Cements Ltd (GACL), a division bench comprising Justice S B Majumdar and Justice M Jagannadha Rao set aside the High Court order dismissing the petitions filed by GACL and others challenging the 10 per cent premium.