The New Howrah Bridge was built between 1937 and 1943 and had a single 450 m span. It is technically a cantilever truss bridge, constructed entirely by riveting, without nuts or bolts. It is currently used as a road bridge, but previously had a tram route as well. The bridge also has sister bridges over the river at different points, namely the Vidyasagar Setu and the Vivekananda Setu.
View of Howrah Bridge under the Monsoon clouds.

Howrah Bridge is still the gateway to Kolkata. Built on the Hooghly River, its original purpose was to facilitate military transportation between Kolkata and the industrial town of Howrah during World War II. It remains a cantilever bridge connecting the city to its main railway station, the Howrah Station, one of the busiest railway stations of the world.

The bridge is 705 metres long and 30 metres wide. More than 26,500 MT of high-tensile steel went into this unique bridge supported by two piers, each nearly 90 meters above the road. An engineering ...more

Source: WIKI

Cleveland Bridge & Engineering Co. Ltd of Darlington

Not any indian company

Construction of the New Howrah Bridge was started on 1937. This bridge is one of the finest cantilever bridges in the world. After considering the quotation from various firms, the contract was awarded to Cleveland Bridge & Engineering Co. Ltd of Darlington. Out of the total 26,500 tons of steel used, Tata Iron and Steel Company supplied 23,500 tons of steel and fabrication was done by Braithwaite, Burn and Jessop Co. at four different shops in Calcutta (now Kolkata).

Source: I , Me , Myself