Kendriya Vidyalaya follows the CBSE syllabus with NCERT books. In Class 6 Part-1 (first term). Your part 1 syllabus -

English: Poorvi (KV Devlali Library)
Hindi: Malhar (KV Devlali Library)
Sanskrit: Deepkam (KV Devlali Library)
Mathematics: NCERT Mathematics Class VI (Slideshare, KVSLibrary)
Science: Curiosity (NCERT) (Slideshare, KVSLibrary)
Social Science: Exploring Society : India and Beyond (Slideshare, KVSLibrary)
Artificial Intelligence: Basics (KV Devlali Library)
Art Education: KRITI-I (KV Devlali Library)
Vocational Education: Kaushal Bodh (KV Devlali Library)
Physical Education & Well Being: Khel Yatra (KV Devlali Library)

Also you can check syllabus on KVSLibrary (https://kvslibrary.com/kvs-split-up-syllabus-2025-26/) .