[3] With the partition of India in 1947, the connection to North Bengal was lost since a major portion of the Calcutta-Siliguri line ran through East Pakistan, now Bangladesh.

A 37 km (23 mi) long 1,676 mm (5 ft 6 in) wide 5 ft 6 in (1,676 mm) broad gauge new line was constructed from Khejuria Ghat (near present-day Chamagram station), on the north bank of the Ganga to Malda Town by 1959 and was further extended to meet Barsoi junction by 1962.

[4] The 2,240 m (7,350 ft) long Farakka Barrage, which carries a rail-cum-road bridge across the Ganges was opened in 1971 thereby directly linking the B.B loop line to Malda Town, New Jalpaiguri and other railway stations in North Bengal.

A railway bridge was constructed as a part of a line from Nashipur Road to Azimganj for stone traffic in 1928 which connected both the banks.

[7][8] Once completed Indian Railways plans to use it for the North bound trains from Sealdah like Darjeeling Mail as it provides a shorter route leading to significant savings in cost and time.