India and Indonesia on Thursday concluded their 27th coordinated patrol in the Indian Ocean, an official statement said.
The two countries conduct coordinated patrols twice a year.
The closing ceremony was held from May 16 - 19 with Indian Naval Ship 'Karmuk' entering Belawan harbour in Indonesia on May 16.
The ship was escorted by Indonesia Navy ship KRI 'Imam Bonjol' into the harbour.
The coordinated patrol started on April 29.
The opening ceremony was held at Port Blair, Andaman and Nicobar islands.