49.  Superintendence and control 
Subject to the general control and superintendence of the Government, control and superintendence over all officers appointed under sub-section (2) of section 66 shall vest in the Commissioner. 
49A. Power to extend time 
Where in these rules a period is prescribed for doing a certain act, the Commissioner may, for reasons to be recorded in writing, extend that period as may be specified by him.  |