Two days in Mumbai is the South Mumbai greatest-hits circuit: Gateway of India, the CSMT and Elephanta Caves UNESCO sites, Marine Drive, and one real museum. It is not “all of Mumbai,” and anyone who promises you Bandra, Dharavi, Sanjay Gandhi National Park and the suburbs too in forty-eight hours is selling a rushed, overpriced mess. Mumbai (formerly Bombay, officially renamed by the Government of India in November 1995) is India’s largest city and financial capital, on the Arabian Sea in Maharashtra, and two days barely covers the island city core, let alone the 20-million-plus metro around it.

Three days in Mumbai still means South Mumbai plus one evening in Bandra, not the sprawl of a twenty-million-person metro, and this plan says so upfront instead of pretending otherwise. Days 1 and 2 are the exact South Mumbai core: Gateway of India, the Fort and Colaba heritage walk past two of Mumbai’s three UNESCO sites, Marine Drive, the CSMVS museum, and the Elephanta Caves ferry. Day 3 adds Dhobi Ghat, Haji Ali if the tide allows it, Mani Bhavan, and a Bandra evening.

Four days in Mumbai is where the city stops being a postcard. The first three days cover the same ground as any shorter trip: the Gateway of India, the Fort’s two UNESCO precincts, Marine Drive, the Elephanta Caves ferry, Haji Ali and an evening in Bandra. Day 4 is the one almost nobody books: Sanjay Gandhi National Park, the Kanheri Caves cut into it, and a Dharavi tour done through an operator that treats the neighbourhood as a working economy, not a spectacle.

Five days in Mumbai buys you something four days doesn’t: time to slow down. The first four days here run the honest core route, the Gateway of India and the Fort’s UNESCO walk, the Elephanta ferry, Haji Ali and an evening in Bandra, then Sanjay Gandhi National Park and Dharavi. Day 5 adds no new monument. It’s a full day of eating properly and wandering markets instead of ticking off one more sight between taxi rides, which is the entire argument for five days over four.

Six days is enough to do Mumbai (Bombay until the Government of India renamed it in November 1995) properly and still add one real escape out of the city, which is more than most itineraries admit. The honest ceiling is lower than six days looks: Pune is a genuine city with its own attractions, and Ajanta-Ellora is a bucket-list cave complex, but both sit far enough from Mumbai that squeezing either into a single day trip means more time on the road than at the site.

Seven days is Mumbai done properly, not stretched to fill a week. The first five run the honest core: the Gateway of India and the Fort’s UNESCO walk, the Elephanta ferry, Haji Ali and Bandra, Sanjay Gandhi National Park and Dharavi, then a full day built around eating instead of sightseeing. Days 6 and 7 leave the city for two real escapes, the Western Ghats hills at Lonavala-Khandala and the coast across the harbour at Alibaug and Kashid.

Mumbai was Bombay until the Government of India renamed it in November 1995, and the city’s real highlights have not needed marketing since long before that: a free basalt arch built for a 1911 royal visit, three UNESCO World Heritage listings, a laundry the size of a neighbourhood, and a rock-cut cave temple a boat ride into the harbour. The honest complication is timing, not content. Fly in during the June-September monsoon and you’ll lose ferries, flooded streets and half a day of plans to weather that doesn’t ask permission; skip the e-Visa application and you won’t fly in at all, since almost nobody gets a visa-free stamp here.

Mumbai is worth it, but only if you know what you’re buying. India’s largest city and financial capital sits on the Arabian Sea in Maharashtra, running at a scale most cities don’t attempt: three UNESCO World Heritage sites tucked inside a dense, working megacity that was called Bombay until the Government of India renamed it in November 1995. This isn’t a soft city break. It’s the real thing, crowds included, and it rewards travellers who arrive ready for that rather than expecting a postcard.