OBHS or On Board Housekeeping Service is also available in this train . I have travelled in this Rajdhani 4 times. At all instances , i spotted OBHS doing their duties.
Note- I have also travelled in Chattisgarh Sampark Kranti ( Believe me, its one of the best trains of SECR.) . OBHS deployed at this train were more Punctual and they would repeatedly come and clean the Coach Floor along with spraying of Air Refreshener and collecting Garbage from Passengers. (Nothing great in that !! :P )