When someone gets arrested then he remains in lock up and there in police station 
but he must be produced before magistrate within 24 hours 
and its mandatory 
and after that if police wants to take further remand then they can take it with them back to police station but by order of court 
but if not allowed then to be send to jail its judicial custody where he just remain and works 
and also there no threat of torture too 
judicial is maximum of 14 days till gets bail