MUMBAI CENTRAL

2 ROOM AC DOUBLE BED / 4 nos / 800 per room
3 ROOMS DOUBLE BED(attached bath) / 6 nos / 600 per room
3 ROOMS DOUBLE BED / 6 nos...
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/ 500 per room
1 DORMITORY WITH 7 BEDS /7 nos/ 180 per bed

Some notes on booking of Retiring Rooms I found in Internet

"Here are rules of S.E.Railway. Similar rules are of other railways too. You can find on internet.
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Retiring rooms and dormitories...
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:

Retiring Rooms and dormitories (both AC and Non - AC) provided at major stations on S.E. Railway can serve as your transit accommodation. Only those holding valid tickets for inward/outward journey are eligible to make use of this amenity. It is available at very reasonable cost.

How to get accommodation at the retiring
Rooms and Dormitories.

Vacancy positions are generally notified on the Notice Board near Enquiry Counter. Otherwise the vacancy position may be ascertained from Station Manager/Chief Booking Supervisor. Room/Bed will be allotted, if available, after verification of your ticket. You will also be required to pay stipulated charges before the keys of the room are handed over or the bed number in the Dormitory is allotted to you. You can also reserve accommodation in Retiring Room/Dormitory in advance by depositing necessary charges in cash at the station concerned or by sending Money Order in favour of Station Superintendent of the station concerned duly furnishing the train number, date of arrival and ticket/PNR No etc.

Please Note:

Charges for retiring room/Dormitory is
calculated for 24 hours or part thereof. Charges will be collected for the full day irrespective of hours of stay.

a). While single bed can be allotted in the Dormitory, in the Retiring Room both the Beds are allotted to the same party to ensure safety and security of the occupants.

b). In relatively unimportant railway stations where in a double bedded or triple bedded room, a single bed is allotted , the single bed charges will be realized @60 % of the tariff of double bedded room and 40% in the case, a single bed is allotted in a triple bedded room.

Maximum numbers of days allotted for stay in 2 days only. No extension beyond this will be granted.

In case occupation is for more than one day, charges for subsequent days will be 25% more for each day.

Do not cause inconvenience to other occupants of the Retiring Room/Dormitories. If any loss/damage to railway property is noticed during your occupation you will be asked to compensate the same before vacating.

While vacating the Rooms please inform the in-charge and hand over keys.

You will please agree that (i) internet booking,probably is not allowable (ii) you can book by sending money wellin advance to concerned station master. The details of daily charges are locatable from websites of relevant railway sites.."