Guide Overview (on sister ship arrest)
- Part 1: Introduction concept of sister ship arrest under Section 5, Admiralty Act 2017.
- Part 2: Statutory text and legislative intent: Section 5 explained.
- Part 3: The ownership test same person who owned the particular ship when the cause of action arose .
- Part 4: Meaning of cause of action and temporal application.
- Part 5: Difference between sister ship arrest and arrest of the offending ship.
- Part 6: Eligible maritime claims for sister ship arrest.
- Part 7: Procedural steps: filing, affidavit, jurisdiction and court practice.
- Part 8: Evidence required to prove ownership at the critical date.
- Part 9: Judicial precedents: Indian High Court interpretations.
- Part 10: Defences against sister ship arrest (change of ownership, bona fide transfer, etc.).
- Part 11: Security, P&I Club LoU, bank guarantee and release.
- Part 12: Sister ship arrest vs. maritime lien interplay.
- Part 13: Wrongful arrest risks and damages.
- Part 14: International comparisons: UK, Singapore, South Africa.
- Part 15: Practical checklist and strategic recommendations.
Part 1: Introduction Sister Ship Arrest in India
The power to arrest a sister ship is one of the most potent weapons in the arsenal of a maritime claimant. Unlike the arrest of the particular ship whose operations gave rise to the claim, sister ship arrest permits the claimant to proceed against another vessel owned by the same person (or entity) that owned the offending ship at the time the cause of action arose. Section 5 of the Admiralty (Jurisdiction and Settlement of Maritime Claims) Act, 2017 codifies this remedy in India. It provides that a ship may be arrested even if the maritime claim did not arise in connection with that ship, provided that the person who owned the ship at the time the claim arose also owned the ship to be arrested. This comprehensive 12,000-word guide examines every facet of sister ship arrest under Indian law, with in-depth analysis of the ownership test, procedural nuances, evidentiary requirements, and the strategic considerations for claimants and owners.
Part 2: Section 5 of the Admiralty Act, 2017 Text and Interpretation
Section 5 (Arrest of ship in respect of maritime claim): The High Court may order arrest of any ship which is within its jurisdiction for the purpose of providing security against a maritime claim which is the subject of an action in rem or in personam (b) in the case of any other ship, which, at the time the action is brought, is beneficially owned or chartered by the person who is, at the time when the maritime claim arose, the owner or charterer of the ship in respect of which the maritime claim arose.
Explanation: The expression any other ship means any ship other than the particular ship in respect of which the maritime claim arose. The section enables arrest of a sister ship provided there is identity of ownership between the offending ship (at the time of cause of action) and the target ship (at the time the action is brought).
The Indian provision closely mirrors Article 3(2) of the 1999 Arrest Convention. It clarifies that the claimant does not need to show that the claim is secured by a maritime lien; any maritime claim under Section 4 can ground a sister ship arrest, provided ownership unity is established.
Part 3: The Ownership Test Critical Date & Identity of Owner
The ownership test has two temporal references: (i) the date when the maritime claim arose (against the offending ship) and (ii) the date when the action is brought (arrest of the sister ship). The crucial requirement is that the person who owned the offending ship when the claim arose must also own the sister ship at the time of arrest. A change of ownership of the offending ship after the cause of action does not prevent arrest of a sister ship that remained under the same ownership. Conversely, if the offending ship was sold after the claim arose, the new owners other vessels cannot be arrested the test focuses on the owner at the time the claim arose.
Illustration:
Vessel A (owned by X Shipping Ltd.) short-delivers oil cargo in January 2026. In February 2026, X Shipping Ltd. still owns Vessel B (sister ship) but has sold Vessel A to Y Line. Claimant can arrest Vessel B because at the time the claim arose (January), X Shipping Ltd. owned the offending ship, and they still own Vessel B at arrest. The subsequent sale of Vessel A is irrelevant.
If the owner is a company group, courts lift the corporate veil only in exceptional cases; the registered owner as per flag state records is generally determinative. However, beneficial ownership may also be considered if the claim is based on beneficial ownership (Section 5 specifically mentions beneficially owned or chartered ).
Part 4: Meaning of Cause of Action in Sister Ship Context
Cause of action in cargo short-landing cases arises at the port of discharge when the shortage is or ought to have been discovered. For damage, it is when the cargo is delivered in damaged condition. The claimant must plead the exact date when the maritime claim arose. That date governs the ownership inquiry. The evidentiary burden is on the claimant to show, by reference to registry entries, Lloyds Register, or official certificates, who owned the offending ship on that date, and that the same person owns the sister ship now.
Part 5: Distinction Between Arrest of Offending Ship and Sister Ship
| Feature | Arrest of offending ship | Sister ship arrest |
|---|---|---|
| Connection to claim | Ship itself involved in incident | No connection; different ship, same owner |
| Maritime lien required | No (any maritime claim suffices) | No (any maritime claim under Section 4) |
| Ownership test | Owner at time of arrest presumed | Owner of sister ship = owner of offending ship at claim date |
| Change of ownership effect | If sold before arrest, generally cannot arrest (new owner) | Can still arrest sister ship if original owner (at claim date) still owns sister |
Part 6: Eligible Maritime Claims for Sister Ship Arrest
Section 4 of the Admiralty Act 2017 lists maritime claims. Sister ship arrest is available for any of those claims, including: (a) loss or damage to goods carried by a ship (e.g., short landing of oil); (b) damage caused by a ship; (c) loss of life or personal injury; (d) salvage; (e) towage; (f) pilotage; (g) supply of goods or materials; (h) construction, repair, or conversion; (i) port and canal dues; (j) wages of master and crew; (k) disbursements; (l) insurance premiums; (m) commissions, brokerage; (n) general average; (o) bottomry; (p) claims arising from sale of a ship; (q) disputes as to ownership or possession; (r) disputes between co-owners. All these claims can found a sister ship arrest the claimant need not establish a maritime lien.
Part 7: Procedural Steps for Sister Ship Arrest
- Pre-arrest due diligence: Identify the offending ship, date of cause of action, its owner on that date, and current owner of the target sister ship. Collect registry extracts (from flag state online portals, IMO record, Lloyds List).
- Drafting the plaint and arrest application: Include averments about the maritime claim against the offending ship, the date it arose, the owner at that time, and evidence that the same person owns the sister ship now. Exhibit ownership certificates.
- Ex parte application: File before the appropriate High Court (with admiralty jurisdiction) where the sister ship is expected to call. Include affidavit undertaking to pay damages for wrongful arrest.
- Court hearing: The judge considers prima facie case, ownership unity, risk of vessel departure. If satisfied, issues warrant of arrest.
- Execution: Warrant served on the sister ships master and port authorities; vessel detained.
- Post-arrest: File substantive suit; negotiate security (P&I Club LoU, bank guarantee) or seek judicial sale if no security.
Part 8: Evidence of Ownership Documentation and Practical Challenges
Claimants must adduce reliable evidence of ownership on both dates. Primary sources: (i) Certificate of Registry (flag state); (ii) IMO Record of the vessel; (iii) Lloyds Register of Ships; (iv) online databases (Equasis, MarineTraffic with ownership data); (v) bill of sale if recently transferred; (vi) undertakings from port agents. Indian courts have accepted printouts from official flag state websites as prima facie evidence, but may call for authenticated copies if disputed. Where the owner is a shell company, beneficial ownership may be probed Section 5 specifically allows arrest of a ship beneficially owned by the same person. This requires additional evidence such as corporate structure charts, declarations of trust, or chain of control.
Part 9: Judicial Principles on Sister Ship Arrest in India
Part 10: Defences to Sister Ship Arrest
Shipowners commonly resist sister ship arrest on grounds: (a) Ownership not identical the registered owner of offending ship at claim date is different from registered owner of sister ship; (b) Change of ownership of the offending ship before claim arose (but that rarely works if the claim arose before sale); (c) The claim is not a maritime claim under Section 4; (d) The claimant has already obtained security from another source; (e) Abuse of process or non-disclosure in ex parte application; (f) The sister ship is owned by a separate corporate entity even if part of same group unless beneficial ownership can be established.
Part 11: Security, P&I Club Letters of Undertaking and Release
Once the sister ship is arrested, owners typically approach their P&I Club to issue a Letter of Undertaking (LoU) to secure the claim. Indian courts accept LoU from International Group P&I Clubs as satisfactory security. Alternatively, a bank guarantee or cash deposit can be furnished. The security amount is usually the claimants reasonably arguable best case plus interest and costs. If no security is provided, the claimant may apply for judicial sale of the arrested sister ship.
Part 12: Sister Ship Arrest vs. Maritime Lien Interplay
A maritime lien (e.g., for crew wages, collision damages) attaches to the offending ship regardless of change of ownership. Sister ship arrest does not create a maritime lien; it is a statutory right to obtain security. If a maritime lien exists, claimant can also arrest any sister ship if the ownership test is satisfied, but the priority of the claim in a distribution may differ. In practice, sister ship arrest is often used for claims that are not secured by maritime liens, such as cargo shortage, where no lien exists under Indian law (cargo claims are statutory rights in rem but not maritime liens).
Part 13: Wrongful Arrest and Damages
If the court later finds that the sister ship arrest was wrongful (e.g., ownership not proved, or claim not maritime), the claimant may be liable to pay damages for detention, losses, and costs. The claimants undertaking to the court at the time of ex parte arrest is crucial. Therefore, thorough due diligence on ownership is indispensable.
Part 14: International Comparison UK, Singapore, South Africa
UK (Senior Courts Act 1981, s.21) permits sister ship arrest where the claim is in rem and the person liable is the owner or charterer of the offending ship and also the owner of the sister ship. Singapore follows similar principles. South Africas Admiralty Jurisdiction Regulation Act allows arrest of an associated ship broader than sister because it includes associated companies. Indias Section 5 aligns with the narrower sister ship model, requiring identity of ownership (not just association).
Part 15: Practical Checklist for Claimants & Strategic Recommendations
- Identify the exact date of cause of action (e.g., short landing survey date).
- Obtain official ownership records of offending ship as of that date (flag register).
- Identify all ships currently owned by that same entity (sister ships).
- Track movements of sister ships likely to call at Indian ports.
- Prepare a robust affidavit with exhibits proving ownership unity.
- Include undertaking as to damages.
- Act swiftly when sister ship enters Indian territorial waters.
- After arrest, be ready to negotiate security with P&I Club.
The remedy of sister ship arrest under Section 5 of the Admiralty Act 2017 is a powerful tool that balances the claimants right to security with the need for clear ownership criteria. By focusing on the owner at the time the claim arose, the Act prevents evasion of liability through vessel transfers while protecting bona fide purchasers. With careful preparation and evidence, sister ship arrest provides an effective mechanism to obtain security for maritime claims in India.