Option 1: INS Shakti - This ship was not involved in `Mission Sagar - II`.

Option 2: INS Vikramaditya - This ship was not involved in `Mission Sagar - II`.

Option 3: INS Kesari - This ship was not involved in `Mission Sagar - II`.

Option 4: INS Airavat - This is the correct answer. INS Airavat was involved in `Mission Sagar - II`.

INS Airavat, the Indian Navy`s amphibious warship, was deployed for `Mission Sagar - II`. This mission was launched as part of India`s humanitarian aid and disaster relief assistance to friendly foreign countries during the COVID-19 pandemic. INS Airavat played a crucial role in providing assistance to the friendly nations affected by the pandemic.

Alert - The correct answer should be option 4: INS Airavat.