MNOA organizing their 8th Blood Donation camp with the support of The Sunny Ahluwalia Charitable Foundation on 2th April 2016.
DG circular 2016 for nautical COC revalidation for your good info.
All seafarers need to have their CDC's renewed as and when it becomes due. Please find attached the procedure for renewal of Indian CDC's. I hope it answers all your queries on the subject.