Agreement on Persons of Indian Origin in Ceylon (Sirima–Shastri Pact), Exchange of Letters, 30 October 1964

The full text of the 1964 exchange of letters between Prime Ministers Lal Bahadur Shastri and Sirimavo Bandaranaike, which allocated 525,000 persons to Indian citizenship and 300,000 to Ceylonese citizenship, leaving 150,000 "stateless residue" for future negotiation. The MEA page provides stable archival access to this foundational bilateral instrument. **Source 9** **Title:** Exchange of Letters Constituting the Agreement between the Government of India and the Government of Sri Lanka, 28 January 1974 (Indira–Sirimavo / Sirima–Gandhi Pact) **Institution:** Government of India / CommonLII Indian Treaty Series **Publisher:** CommonLII **Year:** 1974 **URL:** https://www.commonlii.org/in/other/treaties/INTSer/1974/2.html **Tier:** A (primary treaty text, CommonLII) **Gloss:** Full text of the 1974 follow-up agreement resolving the 150,000-person residue by splitting them equally — 75,00