Generally 2-3 ,
1 Loco Pilot , 1 Assistant & 1 Supervisor (Many times, not for regular )
Duty time -->>>
Mail/ Exp /SF/Pass---> Min 2 h ,Max 4-5 h
SK/RAJ/DRNT --->Min 2 h...
more... ,Max 5-6 h To 8-9 h
SHTB/JNSHTB --->Min 2-3 h ,Max 4-5 h
Goods ---> Min 2 h ,Max 6-7 h
EMU/DMU --->Min 2 h ,Max 2-3 h