Maitree Express connects India with which of the following neighbours?

Bangladesh
The Maitree Express or Dhaka-Kolkata Express is an International passenger train serving the railway connecting the Bangladeshi capital of Dhaka and India’s West Bengal (Paschim Banga) states capital Kolkata.

• This is the only railway link between the cities of the two nations.
• Recently, India and Bangladesh have decided to expedite the projects for opening rail links to increase people to people contact between the two countries.
• Ministry of Railways in its statement said that the decision was taken at the delegation level Inter Governmental Railway meeting between India and Bangladesh.
• Both sides also exchanged notes on technical, operational and financial matters such as improvement in running of Maitree Express, streamlining of inter-country freight train operations, upgrading infrastructure and establishing more rail connectivity points.