No employer in relation to 10[an establishment] to which any 11[Scheme or the Insurance Scheme] applies shall, by reason only of his liability for the payment of any contribution to 12[the Fund or the Insurance Fund] or any charges under this Act or the 11[Scheme or the Insurance Scheme], reduce, whether directly or indirectly, the wages of any employee to whom the 11[Scheme or the Insurance Scheme] applies or the total quantum of benefits in the nature of old age pension, gratuity 13[Provident Fund or Life Insurance] to which the employee is entitled under the terms of his employment, express or implied.]