B. The impugned Act deprived Class III and Class IV employees of the right to annual cash bonus for the years 1st April, 1975 to 31st March, 1976 and 1st April, 1976 to 31st March, 1977 which was vested in them under clause 8(ii) of the Settlement and there was, therefore, clear infringement of their fundamental right under Article 3 52 19(1) (f) and since this deprivation of the right to annual cash bonus, which was secured under a Settlement arrived at as a result of collective bargaining and with full and mature deliberation on the part of the Life Insurance Corporation and the Central Government after taking into account the interests of the policy holders and the community and with a view to approximating towards the goal of a living wage as envisaged in Article 43 of the Constitution, amounted to an unreasonable restriction, the impugned Act was not saved by Article 19(5) and hence it was liable to be struck down as invalid.