- 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 (from July, 2005 to December, 2021)
- Compilation of orders relating to the use of Hindi (from January, 1989 to June, 2005)
- Resolution - Reconstitute of Kendriya Hindi Samiti
