Explanation:

As per Articles 344(1) and 351 of the Indian Constitution, the eighth schedule includes the recognition of the following 22 languages:

1. Assamese
2. Bengali
3. Bodo
4. Dogri
5. Gujarati
6. Hindi
7. Kannada
8. Kashmiri
9. Konkani
10. Maithili
11. Malayalam
12. Manipuri
13. Marathi
14. Nepali
15. Odia
16. Punjabi
17. Sanskrit
18. Santali
19. Sindhi
20. Tamil
21. Telugu
22. Urdu

Of these languages, 14 were initially included in the Constitution. Subsequently, Sindhi was added in 1967 by 21st constitutional amendment act; Konkani, Manipuri and Nepali were added in 1992 by 71st Constitutional Amendment Act; and Bodo, Dogri, Maithili and Santali were added in 2003 by 92nd Constitutional Amendment Act