29th December 2017 From India, New Delhi
The classification of staff in various categories is notified by Labour Dept and Min wages to be paid is also specified.
For example refer to state of Delhi notification no is 12(28)/142/11/MW/LaB 2016 dated 26/07/20111.
As rightly pointed out , the specified MW are the least the employees are required to be paid.
2nd January 2018 From India, Delhi