Kolkata (West Bengal) [India], March 6 (ANI): Prime Minister Narendra Modi inaugurated and laid the foundation stone of multiple connectivity projects worth Rs 15,400 crores in Kolkata, West Bengal on Wednesday. Prime Minister Narendra Modi also inaugurated India’s first under-river metro tunnel built in Kolkata. In a monumental development set to transform urban transportation, PM Modi inaugurated several key metro and rapid transit projects across countries, marking a significant stride towards enhancing urban mobility and connectivity. The Kolkata Metro extension, featuring the Howrah Maida…