The CBSE has published the syllabus for classes IX to XII.

Link to download the syllabus.

CBSE ACADEMIC WEBSITE:

CBSE | Central Board of Secondary Education : Academics (cbseacademic.nic.in)

CBSE CURRICULUM – IX TO XII: 

CBSE | Academics Unit : Curriculum/Syllabus (cbseacademic.nic.in)