The high-speed accident took place at around 7: 30 am when a car smashed into a taxi on the bridge which is also known as the Mumbai marvel.
The passenger sitting in the front seat of the taxi was killed in the head-on collision, say media reports.
Even though this is the second accident on the sealink, which was inaugurated in Jun 2009, this is the first one in which a life was lost.
The first accident took place days after the bridge was opened to the public. On Jul 25, a vehicle hit a taxi and a Honda City car which were on the opposite lanes injuring two people.