Indian Railways sanctioned ₹671.72 crore for Kolkata Metro power system upgrade to enable 2.5-minute train frequency.
Approved ₹223.58 crore bridge reconstruction project on critical freight route between Asansol and Tatanagar.
Kolkata Metro upgrade includes 7 new traction substations and power system augmentation from 11KV to 33KV.
Bridge project addresses structural distress of aging infrastructure on high-density 67 GMT coal corridor.