- Constitutional Provision
- Official Languages Act,1963
- President's order-1960
- Official Language Resolution,1968
- Official Language Rules,1976
- Official Language Policy of the Union
- Presidential Order issued on the recommendations of the Committee of Parliament on Official Language
- Linguistic area
- Compilation of orders relating to the use of Hindi
- Languages Included in the 8th Schedule of the Indian Constitution
- Resolution - Reconstitute of Kendriya Hindi Samiti
