are, for instance Rs.20000/- receives in a given month, a sum of Rs.30000/- instead of Rs.20000/-. Such a payment may be purely accidental and erroneous arising out of an un-intended mistake. The question is whether the employee has any obligation to verify the reason or the genesis of the windfall that he has received and to refund the same, if he is not lawfully entitled to the same. Our answer to this is in the affirmative. Such a case may not fall in category (i) as the employee has not committed any mistake but it is not a case that would fall in erroneous interpretation or application of rule. It is a case where by reason of sheer neglect of a functionary of the State Government, a payment that is undeserved payment that he has received. We say so because in our opinion, once the undeserved payment came to his notice, every employee is under an obligation to verify the reason for the same and act in a manner that is fair and equitable. Appropriation of a payment which the employee had no reason to expect or accept would in such a case be dishonest. And one who is dishonest cannot take shelter behind equity. We cannot for obvious reasons exhaustively enumerate situations where such payments are received and can be lawfully recovered. All that we propose to point out is that while generality of the cases would fall in category (i) and (ii), some freak cases like the one in category (iii) that we have been able to conceive, may need to be dealt with independently