Which one among the following has the largest shipyard in India?

1 India has several major shipyards involved in shipbuilding and repair. 2 Kochi Shipyard Limited (CSL) located in Kochi (Cochin), Kerala, is one of the largest shipbuilding and maintenance facilities in India. 3 It has the capacity to build large vessels like aircraft carriers (e.g., INS Vikrant) and tankers, and also undertakes repairs. 4 While Kolkata (Garden Reach Shipbuilders & Engineers), Mumbai (Mazagon Dock Limited), and Visakhapatnam (Hindustan Shipyard Limited) have significant shipyards, Cochin Shipyard is generally considered the largest shipyard in India in terms of infrastructure and capacity.