The first engagement in action of the Indian Navy was against the Portuguese Navy during the liberation of Goa in 1961. Operation Vijay followed years of escalating tension due to Portuguese refusal to relinquish its colonies in India. On 21 November 1961, Portuguese troops fired on the passenger liner Sabarmati near Anjadip Island, killing one person and injuring another.[citation needed] During Operation Vijay, the Indian Navy supported troop landings and provided fire support.