New Delhi, March 15 -- The Supreme Court on Thursday directed Singh brothers Malvinder and Shivinder, the former promoters of Ranbaxy Laboratories, to come up with a plan to secure the Rs.3,500 crore award passed by a Singapore arbitration tribunal in favour of Japan's Daiichi Sankyo Inc. The Singh brothers appeared before the court in person and submitted affidavits pursuant to a previous court direction even as they continued to blame each other for the mess....