How does the Grand Trunk Road connect Kolkata with other parts of India?

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The Grand Trunk Road is one of the oldest road routes in India and serves as a vital transportation artery for Kolkata.1

To connect with the rest of the country, the road runs through Haora, a city situated on the west bank of the Hooghly River directly opposite Kolkata. By passing through this satellite city, the Grand Trunk Road functions as the primary route linking Kolkata with northern India, extending historically as far as Pakistan.123

The connection between Kolkata and this major highway is facilitated by several bridges spanning the Hooghly River, including the Rabindra Setu, which carries heavy vehicular traffic between the two cities.12