Butcher Island

The Mumbai Trans Harbour Link, also known as the Sewri Nhava Sheva Trans Harbour Link, is an under-construction 21.8 kilometres (13.5 mi), freeway grade road bridge connecting the Indian city of Mumbai with Navi Mumbai, its satellite city. When completed, it would be the longest sea bridge in India. The bridge will begin in Sewri, South Mumbai and cross Thane Creek north of Elephanta Island and will terminate at Chirle village, near Nhava Sheva. The road will be linked to the Mumbai Pune Expressway in the east and to the proposed Western Freeway in the west. The sea link will contain a 6 lane highway, which will be 27 meters in width, in addition to two emergency exit lanes, edge strip and crash barrier.The project is estimated to cost ₹17,843 crore (US$2.3 billion). The Mumbai Metropolitan Region Development Authority (MMRDA) awarded contracts for the project in November 2017; construction began in April 2018, and was scheduled to complete within four-and-a-half years. Construction was delayed by around 8 months due to the COVID-19 pandemic, and is currently expected to complete by October 2023. The MMRDA estimates that 70,000 vehicles will use the bridge daily after it opens.

The Elephanta Caves are a collection of cave temples predominantly dedicated to the Hindu god Shiva, which have been designated a UNESCO World Heritage Site. They are on Elephanta Island, or Gharapuri (literally meaning "the city of caves"), in Mumbai Harbour, 10 kilometres (6.2 mi) east of Mumbai in the Indian state of Mahārāshtra. The island, about 2 kilometres (1.2 mi) west of the Jawaharlal Nehru Port, consists of five Hindu caves, a few Buddhist stupa mounds that date back to the 2nd century BCE, and two Buddhist caves with water tanks.The Elephanta Caves contain rock-cut stone sculptures, mostly in high relief, that show syncretism of Hindu and Buddhist ideas and iconography. The caves are hewn from solid basalt rock. Except for a few exceptions, much of the artwork is defaced and damaged. The main temple's orientation as well as the relative location of other temples are placed in a mandala pattern. The carvings narrate Hindu mythologies, with the large monolithic 5.45 metres (17.9 ft) Trimurti Sadashiva (three-faced Shiva), Nataraja (Lord of dance) and Yogishvara (Lord of Yogis) being the most celebrated.These date to between the 5th and 9th centuries, and scholars attribute them to various Hindu dynasties. They are most commonly placed between the 5th and 7th centuries. Many scholars consider them to have been completed by about 550 CE.They were named Elefante—which morphed to Elephanta—by the colonial Portuguese who found elephant statues on the caves. They established a base on the island. The main cave (Cave 1, or the Great Cave) was a Hindu place of worship until the Portuguese arrived, whereupon the island ceased to be an active place of worship. The earliest attempts to prevent further damage to the caves were started by British India officials in 1909. The monuments were restored in the 1970s. It is currently maintained by the Archaeological Survey of India (ASI).

Elephanta Island (also called Gharapuri (literally "the city of caves") or Pory Island) is one of a number of islands in Mumbai Harbour, east of Mumbai, India.

Trombay is an eastern suburb in Bombay (Mumbai), India.

Mumbai South Central Lok Sabha constituency (formerly, Bombay South Central Lok Sabha constituency) is one of the 48 Lok Sabha (parliamentary) constituencies in Maharashtra state in western India.

Mahul is a fishing village in Chembur, Mumbai (Kurla Tehsil), located on the eastern seafront of the Mumbai Suburban district. The village is known Since 2017, Mahul has been in news for its high levels of pollution and the dismal conditions of its 72 building slum resettlement colony because of which it has come to be referred to as Mumbai's "toxic hellhole", "gas chamber" and "human dumping ground", where the poor "are sent to die".The Mahul-Trombay belt, which includes the villages of Mahul, Ambapada and Chereshwar were sparsely populated regions, home only to a few local fishing communities and thick mangrove forests. The industrial diversification that began in the country during World War II led to a movement of the population beyond the northern suburbs of the 1930s. In 1947, the Committee on Industrial Development came to the conclusion that "Trombay [is] ... most suitable ... [because of its] proximity to the deep water jetty and [being] far removed from residential populations". This thinking guided the government's actions during the first Five Year Plan after independence, when the state owned refineries now present in the region were first established. Over the next few decades, Mahul became home to major industrial establishments such as Bharat Petroleum Corporation Ltd. (BPCL), Hindustan Petroleum Corporation Ltd. (HPCL), Tata Power, Rashtriya Chemical Fertilizers (RCF), Sea Lord Containers, Aegis Logistics, Indian Oil, Natual Oil Blending Ltd., Chemical Terminal Trombay Ltd. and Bhabha Atomic Research Centre (BARC). As a consequence, air and water quality in Mahul and surrounding villages have suffered and its biodiversity is threatened.

Mumbai Harbour (also English; Bombay Harbour or Front Bay, MarathiMumba'ī bandar), is a natural deep-water harbour in the southern portion of the Ulhas River estuary. The narrower, northern part of the estuary is called Thana Creek. The harbour opens to the Arabian Sea to the south. The historical island of Elephanta is one of the six islands that lie in the harbour. Front Bay is the official name of the harbour, so named because the city started as a tiny settlement facing the harbour. The waterbody behind the original settlement, forming an arc between the former Colaba island and Bombay island, up to the Malabar Hill promontory or peninsula, was similarly called Back Bay. Front Bay is home to the Mumbai Port, which lies in the south section of the western edge of the harbour. Jawaharlal Nehru Port and Navi Mumbai lie to the east on the Konkan mainland, and the city of Mumbai lies to the west on Salsette Island. The Gateway of India with its jetty for Elephanta is the most important tourist destination, followed by the INS Vikrant maritime Museum.

Jawaharlal Nehru Port, also known as JNPT and Nhava Sheva Port, is the second largest container port in India after Mundra Port. Operated by the Jawaharlal Nehru Port Trust Authority (JNPTA), it is located on the eastern shores of Arabian Sea in Navi Mumbai, Raigad district, Maharashtra. This port can be accessed via Thane Creek, a nodal city of Navi Mumbai. It is the main port of the Mumbai Metropolitan Region after Mumbai Port, also of Maharashtra and Western India. Its common name derives from the names of Nhava and Sheva villages that are situated here. It is also the terminal of the Western Dedicated Freight Corridor. As of January 2023, the port is undergoing upgrades with the help of a loan agreement signed between the Asian Development Bank (ADB) and Nhava Sheva Freeport Terminal Private Limited (NSFTPL). The loan of $131 million will be used to improve the terminal's infrastructure, increase its container handling capacity, upgrade existing berths and yards, and install energy-efficient equipment. The upgrades aim to attract vessels and make international trade more efficient, transparent and sustainable.

Mazagaon, also spelled Mazgaon and Mazagon (known as Mazagão during the Portuguese rule), and pronounced by the Catholics as 'Mazgon' or 'Maz-a-gon' and the Marathi-speakers as Mazgav, is one of the seven islands of Mumbai. It is part of South Mumbai and can be reached by Byculla Station on the Central railway line and Dockyard Road Station on the Harbour Railway line. Located in Mazagaon are maritime companies like the Bombay Port Trust and Mazagaon Dock Ltd., the Mazagaon Court and Anglo-Indian schools including Rosary High School, St. Peters School, Antonio D'Souza High School, Diamond Jubilee High School and St. Mary's School.

Cross Island, locally known as Chinal Tekdi, is an uninhabited or sparsely inhabited island located in Mumbai harbour, India, between the coast at Dockyard Road, and Elephanta Island, about 400 m from Ferry Wharf on the east coast of Mumbai. The island is host to an oil refinery and several large gas holders, and features the ruins of a fort. The fort occupies almost the entire island, and was perhaps built by the Portuguese or the British settlers. There are several cannons strewn across the fort, and one very large gun. The top of the fort has a mound with a solitary large Ficus (Peepal) tree. The island is sparsely occupied by fisher folk, although it seems to have no natural source of fresh water. At the base of the fort, some brick and mortar construction lies in dilapidated condition. This is obviously more recent as compared to the fort and seems to have been deserted by the occupants for unknown reasons. While there is no guided tour or regular transport available to reach the island, it is possible to get such a service from local fishermen around ferry wharf for about Rs. 1000 for a 6-seater boat.

CIRUS (Canada India Reactor Utility Services) was a research reactor at the Bhabha Atomic Research Center (BARC) in Trombay near Mumbai, India. CIRUS was supplied by Canada in 1954, but used heavy water (deuterium oxide) supplied by the United States. It was the second nuclear reactor to be built in India. It was modeled on the Canadian Chalk River National Research X-perimental (NRX) reactor. The 40 MW reactor used natural uranium fuel, while using heavy water as a moderator. It is a tank reactor type with a core size of 3.14 m (H) × 2.67 m (D). It first went critical July 10, 1960.The reactor was not under IAEA safeguards (which did not exist when the reactor was sold), although Canada stipulated, and the U.S. supply contract for the heavy water explicitly specified, that it only be used for peaceful purposes. Nonetheless, CIRUS produced some of India's initial weapons-grade plutonium stockpile, as well as the plutonium for India's 1974 Pokhran-I (Codename Smiling Buddha) nuclear test, the country's first nuclear test. At a capacity factor of 50–80%, CIRUS can produce 6.6–10.5 kg of plutonium a year. CIRUS was shut down in September 1997 for refurbishment and was scheduled to resume operation in 2003. The reactor was brought back into operation two years late in 2005. During refurbishing, a low-temperature vacuum evaporation-based desalination unit was also coupled to the reactor to serve as demonstration of using waste heat from a research reactor for sea desalination. Even if the reactor has a life of twenty more years, India had declared that this reactor would be shut down by 2010 in accordance with the Indo-US nuclear accord reached between Indian Prime Minister Manmohan Singh and US President George W. Bush. The reactor was shut down on 31 December 2010.

Mahul Creek is a tidal creek in north west Mumbai. It opens into the Thane Creek. The creek is located near the neighbourhoods of Chembur and Mahul. It is surrounded by mangrove forests. When measured from the high tide line of one bank to another, the creek is over 350 metres (1,148 ft) wide. It also serves as a discharge for excess rainwater in eastern suburban Mumbai.