(4)The contribution to be paid by the aggregators for the funding referred to in clause (ii) of sub-section (1) of section 141, shall be at such rate not exceeding two per cent., but not less than one per cent., as may be notified by the Central Government, of the annual turnover of every such aggregator who falls within a category of aggregators, as are specified in the Seventh Schedule:Provided that the contribution by an aggregator shall not exceed five per cent. of the amount paid or payable by an aggregator to gig workers and platform workers.Explanation. - For the purposes of this sub-section, the annual turnover of an aggregator shall not include any tax, levy and cess paid or payable to the Central Government.