This is an application for issuing a writ of certiorari to quash the order of the Additional Commissioner for Workmen’s Compensation, Madras.

The respondents, S.P. Nataraja Sastrigal and S. Padmanabha Rao, were Assistant Masters in the South Indian Railway, each in charge of Northern area school and Eastern area school respectively, of the Golden Rock colony. They were allowed to draw a duty allowance of Rs. 2 each per mensem. The appointments were made on 5th July, 1941. Subsequently their designation was changed to that of head masters. In the year 1950, the Central Pay Commission sanctioned a revised scale of pay and allowance to the head masters which was to be given retrospective effect from January, 1947. In implementation of the above, the duty allowance of the head masters was raised to Rs. 15 per month. After the revision of the scales of pay C.S. Krishnamurthy Aiyar and M.G. Venkatarama Aiyar in whose places the respondents were appointed, were posted as head masters of the said two elementary schools. The respondents were reverted to their posts as. assistant masters and posted to work in the High Schools and Elementary Schools respectively. As they were reverted t