(3) [Where an inquiry under section 16 is pending or any scheme referred to in section 17 is under preparation or during the period] of consideration of any scheme under section 18 or where any such scheme is sanctioned thereunder, for due implementation of the scheme, the Board may by order declare with respect to the sick industrial company concerned that the operation of all or any of the contracts, assurances of property, agreements, settlements, awards, standing orders or other instruments in force, to which such sick industrial company is a party or which may be applicable to such sick industrial company immediately before the date of such order, shall remain suspended or that all or any of the rights, privileges, obligations and liabilities accruing or arising thereunder before the said date, shall remain suspended or shall be enforceable with such adaptations and in such manner as may be specified by the Board: Provided that such declaration shall not be made for a period exceeding two years which may be extended by one year at a time so, however, that the total period shall not exceed seven years in the aggregate.
