Section 6(b) in The Tamil Nadu Municipal Corporations Service Rules, 1996
(b)for promotion from a lower to a higher category in the service as the case may be in the same manner as if he had not been absent. He shall be entitled to all the privileges in respect of appointment, seniority, probation and appointment which he would have enjoyed, but for his absence, subject to his completing satisfactorily the period of probation on his return.
