Mumbai: The Delhi High Court on Monday said it would jointly hear some of the issues on anti-profiteering raised by 44 top Indian companies sparking what might be a long drawn battle with the indirect tax department over Goods and Services Tax (GST).Petitioners challenging the Indian indirect tax department over anti-profiteering under GST include Pyramid Infrastructure, HUL, Abbott, Johnson & Johnson, Philips, Acme developers, Samsonite,