(3)When reserved accommodation is requisitioned, payment is to be made according to the number of compartments required for the whole party of guards and prisoners irrespective of the number carried in a compartment (which number should not be greater than it is designed to hold), at the rate of fares on the full marked carrying capacity of the compartment, subject to a minimum charge in the case of a railway on the broad gauge, of Rs. 5 per compartment per journey.