Delhi Transport Corporation [DTC] — I'm complaining about deployed bus marshall in the bus

On dated 11 may 2021, I was travelling on bus no. DL1PC 8158 (AC Bus), route - By Pass Express. Marshall was sitted on seat (as per rule marshal can't sit on seat during duty or if the seat vacant he can sit but will provide his seat if passenger need). A female passanger wanted to board in the bus from IP Power station stop but marshall didn't allow to enter her in the bus as he said no seats vacant. When i asked him you are not allowed to sit in the seat and you had to offer your seat to the passanger he replied rudely - " apna kaam kar, corona time hai hume bola gya hai seat par bethne ke liye " . May i want to know any such of order issued for marshalls that they will perform their duty by sitting ? If not please take strict action against him.