*Bandra–Worli Sea Link

The Bandra–Worli Sea Link or Rajiv Gandhi Sea Link (in pic) is the longest sea bridge in India and connects Bandra with Worli across the Mahim Bay, a part of the Arabian Sea. It is a cable-stayed bridge that carries eight lanes of traffic on a total length of 5.6 km. The Mumbai Trans Harbour Link, also known as Sewri-Nhava Sheva Trans-Harbour Link is a proposed 21.8 km long freeway grade road bridge connecting  the city of Mumbai with Navi Mumbai, its satellite city, in Maharashtra. When completed it will be the longest sea bridge in India. Construction was expected to begin in October 2017. 

*Vashi Bridge, also known Thane Creek Bridge, connects the city of Mumbai to the mainland through the Thane Creek. The Vashi Bridge is one of four entry points into Mumbai and was the first to connect Mumbai to Navi Mumbai in Maharashtra.

*The Airoli Bridge is the second bridge connecting Mumbai to Navi Mumbai, built across the Thane Creek. It is a 3.8 km long bridge and establishes a direct road link connecting the Thane-Belapur road and the  Eastern Express Highway. 

*The Annai Indira Gandhi Bridge or Pamban Road Bridge connects the  island of Rameswaram with Mandapam in Tamil Nadu (NH 49). The bridge runs parallel to the Pamban Rail Bridge and carries two lanes of road traffic. The 2.34 km long bridge has a 115.21m (378 ft) span and a vertical clearance of about 18 m (59 ft) above high-tide level. It was inaugurated on 2 October 1988.

*The Rama Setu is a 30 km long stretch of limestone shoals that runs from Pamban Island near Rameswaram in Tamil Nadu to Mannar Island off the northern  coast of Sri Lanka. Traditionally, it is claimed that the bridge was built by Lord Rama’s ‘vanar sena’, while others say that it is a naturally formed chain of lime shoals.

*The Pamban Rail Bridge or Indira Gandhi Bridge connects Rameswaram on Pamban Island, Tamil Nadu,  to the mainland across the Palk Strait. It is the second longest sea bridge in India with a total length of about 2.3 km.  The bridge, built way back in 1914, is considered a marvel of engineering.