Law4u - Made in India

What is the Vienna Convention on the Law of Treaties?

18-Jul-2025
International Law

Answer By law4u team

The Vienna Convention on the Law of Treaties (VCLT) is an international agreement that governs the rules for creating, interpreting, and terminating treaties between countries. Adopted: 23 May 1969 Entered into force: 27 January 1980 Place: Vienna, Austria Depositary: UN Secretary-General Key Features: Defines a treaty as “an international agreement concluded between States in written form and governed by international law” Applies only to treaties between states (not organizations or individuals) Lays down rules on: How treaties are made How they are interpreted How they can be amended, suspended, or terminated Recognizes key principles like: Pacta sunt servanda – treaties must be obeyed in good faith Invalidity of treaties if entered by coercion, fraud, or against international law Provides that treaties must be registered with the United Nations India’s Status: India is not a party to the VCLT, but it follows many of its provisions as part of customary international law. Importance: The VCLT is the cornerstone of international treaty law and is widely regarded as the authoritative guide for treaty-related matters across the world.

Answer By Ayantika Mondal

Dear Client, Yes, the Vienna Convention on the Law of Treaties (VCLT), 1969, is a prominent international treaty that lays down the rules and principles of conclusion, interpretation, amendment, and termination of treaties among states.It was accepted by the United Nations and is a codification of customary international law on treaties. The Convention embraces key doctrines like pacta sunt servanda (agreements should be adhered to) and gives rules on matters of invalid treaties, coercion, and conflict with jus cogens (peremptory rules) and withdrawal from treaties. It regulates the manner in which treaties are concluded and entered into force and lays down how states must deal with breach or termination. Although India has not ratified the Vienna Convention, its principles are largely accepted as part of customary international law and are often followed in Indian diplomatic and legal practice when dealing with international treaties. I hope this answer helps. In case of future queries, please feel free to contact us. Thank you.

International Law Verified Advocates

Get expert legal advice instantly.

Advocate Atul Kumar Shukla

Advocate Atul Kumar Shukla

Banking & Finance, Breach of Contract, Child Custody, Family, Divorce, Cyber Crime, Customs & Central Excise, Consumer Court, Cheque Bounce, Court Marriage, Criminal, GST, Muslim Law, R.T.I, Property, Motor Accident, Media and Entertainment, Labour & Service, Immigration, Domestic Violence, Insurance, International Law, High Court, Documentation, Recovery, Trademark & Copyright, Wills Trusts, Tax, Patent, RERA, NCLT, Medical Negligence, Arbitration, Anticipatory Bail, Armed Forces Tribunal, Startup, Revenue, Corporate, Civil, Bankruptcy & Insolvency, Landlord & Tenant

Get Advice
Advocate Raman Sahu

Advocate Raman Sahu

Anticipatory Bail, Arbitration, Breach of Contract, Cheque Bounce, Child Custody, Civil, Consumer Court, Court Marriage, Criminal, Cyber Crime, Divorce, Documentation, GST, Domestic Violence, Family, High Court, Immigration, Insurance, International Law, Labour & Service, Landlord & Tenant, Media and Entertainment, Medical Negligence, Motor Accident, Muslim Law, Patent, Property, R.T.I, Recovery, RERA, Startup, Succession Certificate, Supreme Court, Tax, Trademark & Copyright, Wills Trusts, Revenue

Get Advice
Advocate Ashutosh Jha

Advocate Ashutosh Jha

Anticipatory Bail, Arbitration, Armed Forces Tribunal, Bankruptcy & Insolvency, Banking & Finance, Breach of Contract, Cheque Bounce, Child Custody, Civil, Consumer Court, Corporate, Court Marriage, Customs & Central Excise, Criminal, Cyber Crime, Divorce, Documentation, GST, Domestic Violence, Family, High Court, Immigration, Insurance, International Law, Labour & Service, Landlord & Tenant, Media and Entertainment, Medical Negligence, Motor Accident, Muslim Law, NCLT, Patent, Property, R.T.I, Recovery, RERA, Startup, Succession Certificate, Supreme Court, Tax, Trademark & Copyright, Wills Trusts, Revenue

Get Advice
Advocate Vedmani Tiwari

Advocate Vedmani Tiwari

Anticipatory Bail, Arbitration, Armed Forces Tribunal, Banking & Finance, Breach of Contract, Cheque Bounce, Bankruptcy & Insolvency, Child Custody, Corporate, Consumer Court, Civil, Court Marriage, Customs & Central Excise, Criminal, Domestic Violence, Divorce, GST, Documentation, High Court, Family, Immigration, Insurance, International Law, Labour & Service, Media and Entertainment, NCLT, Property

Get Advice
Advocate Aswad N Patil

Advocate Aswad N Patil

Anticipatory Bail, Bankruptcy & Insolvency, Banking & Finance, Breach of Contract, Cheque Bounce, Child Custody, Customs & Central Excise, Consumer Court, Corporate, Court Marriage, Civil, Criminal, Cyber Crime, Documentation, Domestic Violence, Family, Immigration, High Court, Insurance, Divorce, Labour & Service, International Law, Landlord & Tenant, Medical Negligence, Motor Accident, NCLT, Patent, Media and Entertainment, Muslim Law, Property, Recovery, R.T.I, RERA, Startup, Succession Certificate, Tax, Trademark & Copyright, Wills Trusts, Revenue, Arbitration

Get Advice
Advocate Darshan Panchal

Advocate Darshan Panchal

Property, Recovery, Labour & Service, Landlord & Tenant, High Court, Customs & Central Excise, GST, Immigration, International Law, Family, Divorce, Cyber Crime, Documentation, Domestic Violence, Consumer Court, Arbitration, Armed Forces Tribunal, Anticipatory Bail, Bankruptcy & Insolvency, Banking & Finance, Cheque Bounce, Breach of Contract, Corporate, Child Custody, Civil, Court Marriage, Criminal, Insurance, Medical Negligence, Media and Entertainment, NCLT, Motor Accident, Muslim Law, R.T.I, Startup, RERA, Trademark & Copyright, Supreme Court, Wills Trusts, Revenue, Succession Certificate, Patent, Tax

Get Advice
Advocate naga manikandan

Advocate naga manikandan

Criminal,Divorce,Family,High Court,International Law,

Get Advice
Advocate Bishal Dey

Advocate Bishal Dey

Anticipatory Bail, Arbitration, Armed Forces Tribunal, Bankruptcy & Insolvency, Banking & Finance, Breach of Contract, Cheque Bounce, Child Custody, Civil, Consumer Court, Corporate, Court Marriage, Customs & Central Excise, Criminal, Cyber Crime, Divorce, Documentation, GST, Domestic Violence, Family, High Court, Immigration, Insurance, International Law, Labour & Service, Landlord & Tenant, Media and Entertainment, Medical Negligence, Motor Accident, Muslim Law, NCLT, Patent, Property, R.T.I, Recovery, RERA, Startup, Succession Certificate, Supreme Court, Tax, Trademark & Copyright, Wills Trusts, Revenue

Get Advice
Advocate Vijender Kumar Bhardwaj

Advocate Vijender Kumar Bhardwaj

Anticipatory Bail, Arbitration, Armed Forces Tribunal, Bankruptcy & Insolvency, Banking & Finance, Breach of Contract, Cheque Bounce, Child Custody, Civil, Consumer Court, Corporate, Court Marriage, Customs & Central Excise, Criminal, Cyber Crime, Divorce, Documentation, GST, Domestic Violence, Family, High Court, Immigration, Insurance, International Law, Labour & Service, Landlord & Tenant, Medical Negligence, Motor Accident, Muslim Law, NCLT, Patent, Property, R.T.I, Recovery, RERA, Startup, Succession Certificate, Tax, Wills Trusts, Revenue

Get Advice
Advocate Madhuri sangani

Advocate Madhuri sangani

Anticipatory Bail,Arbitration,Armed Forces Tribunal,Bankruptcy & Insolvency,Banking & Finance,Breach of Contract,Cheque Bounce,Child Custody,Civil,Consumer Court,Corporate,Court Marriage,Customs & Central Excise,Criminal,Cyber Crime,Divorce,Documentation,GST,Domestic Violence,Family,High Court,Immigration,Insurance,International Law,Labour & Service,Landlord & Tenant,Media and Entertainment,Medical Negligence,Motor Accident,Muslim Law,NCLT,Patent,Property,R.T.I,Recovery,RERA,Startup,Succession Certificate,Supreme Court,Tax,Trademark & Copyright,Wills Trusts,Revenue

Get Advice

International Law Related Questions

Discover clear and detailed answers to common questions about Breach of Contract. Learn about procedures and more in straightforward language.