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.

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.