“42. If it appears to be undisputable, as it does to us that the pensioners for the purpose of pension benefits form a class, would its upward revision permit a homogeneous class to be divided by arbitrarily fixing an eligibility criteria unrelated to purpose of revision, and would such classification be founded on some rational principle? The classification has to be based, as is well settled, on some rational principle and the rational principle must have nexus to the objects sought to be achieved. We have set out the objects underlying the payment of pension. If the State considered it necessary to liberalise the pension scheme, we find no rational principle behind it for granting these benefits only to those who retired subsequent to that date simultaneously denying the same to those who retired prior to that date. If the liberalisation was considered necessary for augmenting social security in old age to government servants then those who, retired earlier cannot be worse off than those who retire later. Therefore, this division which classified pensioners into two classes is not based on any rational principle and if the rational principle is the one of dividing pensioners with a view to giving something more to persons otherwise equally placed, it would be discriminatory. To illustrate, take two persons, one retired just a day
