The Board of Directors of the Tasc Pharmaceuticals Ltd (TPL) has approved the proposed scheme of amalgamation of Glenmark Laboratories Ltd (GLL) with the Company, including the proposed exchange ratio of 1.8:1 i.e. 9 shares of TPL for every 5 shares of GLL, subject to requisite approval / sanction of the High Court at Mumbai, financial institutions, banks and such other approvals / sanctions as may be required in this connection, a company release said here.