Since the 17th century the islets have been joined through drainage and reclamation projects, as well as through the construction of causeways and breakwaters, to form Bombay Island. An ambitious scheme for the construction of a seawall in Back Bay to reclaim an area of 1, acres hectares of land was proposed in , but it was not finished until the completion of Netaji Subhas Chandra Bose Road Marine Drive from Nariman Point to Malabar Point—the first two-way highway of its kind in India—after World War II — Farther south around Colaba and to the west along the Back Bay coast and on Malabar Hill are residential neighbourhoods. Technology companies were encouraged to move especially to the northern and eastern suburbs, drawn there by improvements in infrastructure and low rents. In addition, there are a number of prominent private hospitals. By the early 21st century the city had reached an average of some 77, persons per square mile 29, per square km. Juhu and Chowpatty beaches are popular areas for bathing and swimming. At first, compared with Calcutta now Kolkata and Madras now Chennai , Bombay—as it was called by the British—was not a great asset to the company but merely helped it keep a toehold on the west coast. This might make your CV unique and different from rest of the lost. The regional station of All-India Radio is centred in Mumbai. After years of lagging behind cities such as Bengaluru Bangalore and Hyderabad , Mumbai began developing its own information technology IT sector in the late 20th century.