The correct answer provided, Kodava, is actually not one of the 22 official languages listed under the 8th Schedule of the Indian Constitution.
As of now, the 8th Schedule of the Constitution of India recognizes the following 22 official languages:
Assamese, Bengali, Bodo, Dogri, Gujarati, Hindi, Kannada, Kashmiri, Konkani, Maithili, Malayalam, Manipuri, Marathi, Nepali, Odia, Punjabi, Sanskrit, Santali, Sindhi, Tamil, Telugu, and Urdu.
Kodava (also known as Kodava Takk), spoken by the Kodava community in Coorg (Kodagu district) in Karnataka, is not yet included in the 8th Schedule, although there have been demands and proposals for its inclusion.
Conclusion:
The correct answer should be a language from the officially recognized list. Therefore, Kodava is not one of the 22 official languages under the 8th Schedule of the Indian Constitution.