For an Indian Flagged container vessel, the following statutory certificates are typically required to be carried on board, along with their respective validity periods:

1. International Tonnage Certificate (1969)

   • Validity: No expiry, unless major structural alterations affecting tonnage are made to the vessel.

2. International Load Line Certificate

   • Validity: 5 years, subject to annual surveys.

3. Cargo Ship Safety Construction Certificate

   • Validity: 5 years, subject to intermediate and annual surveys.

4. Cargo Ship Safety Equipment Certificate

   • Validity: 5 years, subject to intermediate and annual surveys.

5. Cargo Ship Safety Radio Certificate

   • Validity: 5 years, subject to intermediate and annual surveys.
   • Note: For cargo ships, the above three certificates (Construction, Equipment, Radio) may be combined into a single Cargo Ship Safety Certificate, also with a 5-year validity.

6. International Oil Pollution Prevention Certificate (IOPP Certificate)

   • Validity: 5 years, subject to intermediate and annual surveys.

7. International Air Pollution Prevention Certificate (IAPP Certificate)

   • Validity: 5 years, subject to intermediate and annual surveys.

8. International Sewage Pollution Prevention Certificate (ISPPC)

   • Validity: 5 years, subject to intermediate and annual surveys.

9. International Ballast Water Management Certificate (IBWMC)

   • Validity: 5 years, subject to intermediate and annual surveys.

10. International Energy Efficiency Certificate (IEEC)

    • Validity: No expiry, unless major modifications affecting energy efficiency are made to the vessel. Subject to initial and renewal surveys.

11. International Ship Security Certificate (ISSC)

    • Validity: 5 years, subject to intermediate and annual verification.

12. Safety Management Certificate (SMC)

    • Validity: 5 years, subject to intermediate verification.

13. Document of Compliance (DOC)

    • Validity: 5 years (issued to the company, but a copy must be carried on board the vessel). Subject to annual verification.

14. Maritime Labour Certificate (MLC)

    • Validity: 5 years, subject to intermediate inspection.

15. International Anti-fouling System Certificate (IAFSC)

    • Validity: 5 years, subject to renewal survey.

16. Minimum Safe Manning Document

    • Validity: No expiry, unless the manning requirements or vessel's operational parameters change, necessitating a review.

17. Certificate of Registry (Indian Flag)

    • Validity: No expiry, unless there is a change in ownership, name of the vessel, or flag, or the vessel is scrapped.

18. Deratting / Deratting Exemption Certificate

    • Validity: 6 months.

19. Continuous Synopsis Record (CSR)

    • Validity: No expiry. This is a continuous record that is updated with any changes to the ship's history, ownership, flag, etc.

Note: This list covers the primary statutory certificates. Additional certificates or documents may be required depending on the vessel's specific trade, cargo, or equipment (e.g., for dangerous goods, specific types of cargo, or specialized equipment).