You can get Kendriya Vidyalaya Class 6 half yearly model papers for all subjects like English, Hindi, Sanskrit, Mathematics, Science, and Social Science from Education Observer’s website. These papers are prepared by different KV regions and are useful for practice before exams.

You can also check the official Kendriya Vidyalaya Sangathan website in the Publications section for Class 6 sample papers for various exams like unit tests, half yearly exams, and term exams.

For extra practice, the KV DRDO Library blog also has some previous half yearly sample papers, especially for Mathematics.

websites:
https://kvsangathan.nic.in
https://kvdrdolibrary.wordpress.com