Solution:India's 13th major port will be set up at Vadhavan in Maharashtra. It will be developed on "landlord model" (where infrastructure is leased to private firms or industries and chemical plants). India's coastline spans 7,517 km, hosts 13 major ports (including proposed Vadhavan Port) and over 200 minor ones. Major ports handle 95% of India's trade by volume and 70% by value. These ports facilitate critical trade, handling various goods like petroleum, coal, iron ore, textiles, and automobiles, with strategic geopolitical significance in global maritime routes.Major Ports in India includes: West coast ports- Mumbai, Kandla, Mangalore, Jawaharlal Nehru Port (JNPT), Mormugao, and Cochin; East coast ports-Chennai, Tuticorin, Visakhapatnam, Paradip, Kolkata, and Ennore.