Explanation:

India has 12 Major ports that handle large volume of traffic. These are Chennai Port, Cochin Port, Jawahar Lal Nehru Port, Kamarajar Port, Kandla Port, Kolkata and Haldia Port, Mormugao Port, Mumbai Port, New Mangalore Port, Paradip Port, V.O Chidambaranar Port and Vishakhapatnam Port.
Cochin port (Kerala) is considered to be one of the largest port between Indian Ocean and Arabian Sea. This port is equipped with maritime facilities.
Chennai port is second largest and third oldest port in India.
Jawaharlal Nehru port (Mumbai) is the largest container port in India and is also known by Nhava Sheva. It accounts for more than half of total container volumes handled at India’s 12 public ports and around 40 percent of the nation’s overall containerized ocean trade.
Kandla port in Gujarat is one of the major ports on the west coast region. It is considered to be the largest port of India by volume of cargo handled.