Here are reputable five‑star hotels in Mumbai that commonly publish special/last‑minute offers — plus the best places to look for last‑minute rates and a few quick tips to save. I checked the hotels’ official offers pages and major OTAs for current “last‑minute / special offer” information.

Top five‑star hotels to check (official offers pages or offers listed)

• Four Seasons Hotel Mumbai — regularly posts packages (example: “Stay Longer / Advance Purchase” offers). (fourseasons.com)
• The Taj Mahal Palace (Colaba) — Taj group publishes rotating member & seasonal offers, including stay/staycation packages. (tajhotels.com)
• Taj Lands End (Bandra) — active staycation and suite promotions (validity shown on the hotel site). (tajhotels.com)
• The Oberoi, Mumbai (Nariman Point) — The Oberoi posts web‑exclusive and member offers from time to time. (oberoihotels.com)
• The St. Regis Mumbai — Marriott/Bonvoy member and promotional offers are published on the hotel/brand pages. (marriott.com)
• Grand Hyatt Mumbai (BKC / Santacruz) — large property that lists offers on its site and appears with competitive OTA last‑minute rates. (grandhyatmumbai.com)
• ITC Maratha (Sahar) — ITC posts limited‑time/member promotions and dining/spa credits that can add value. (itchotels.com)

Where to find last‑minute deals (OTAs & apps that surface late discounts)

• Expedia / Hotels & Expedia’s “Last‑Minute Deals” pages (search for Mumbai dates). (expedia.co.in)
• Kayak / metasearch — has a Last‑Minute section for Mumbai and price comparisons across OTAs. (kayak.com)
• Hotwire / Priceline (opaque & app‑only “Hot Rate” deals) — can show deep last‑minute discounts on luxury hotels. (hotwire.com)
• Booking.com, Agoda, TripAdvisor and local Indian OTAs (MakeMyTrip, Cleartrip, Yatra) — these often display “Last‑minute Deal” badges on hotel pages. (booking.com)

Quick practical tips to get the best last‑minute rate

• Compare direct hotel offers vs OTAs — hotels sometimes match or beat OTA prices to keep bookings direct (check each hotel’s “Offers” page). (fourseasons.com)
• Use flexible dates and mid‑week stays — demand drops mid‑week and rates often fall. (OTAs’ last‑minute pages and FAQs explain this.) (expedia.co.in)
• Join the hotel loyalty program (Marriott Bonvoy, Taj Neu/Neupass, ITC Club, etc.) — member rates and last‑minute member promos can be meaningfully cheaper. (tajhotels.com)
• Use last‑minute apps (HotelTonight/Expedia app, Hotwire) and enable alerts — they push limited‑time drops. (cntraveler.com)
• If you’re booking very late, call the hotel’s reservations/sales desk — sometimes hotels can offer unpublished or corporate rates to fill inventory.

If you want, I can pull live last‑minute availability and prices for specific dates and room types (I’ll search OTAs + the hotels’ direct rates). Which arrival/check‑out dates should I use?