PM Modi begins a 3-day tour to Mizoram, Manipur, Assam, West Bengal, and Bihar, launching infrastructure projects worth over ₹36,000 crore. Key highlights include the Bairabi-Sairang rail line, road and healthcare projects, Numaligarh ethanol plant, Bhupen Hazarika centenary, Combined Commanders’ Conference, Purnea airport, and National Makhana Board launch.