CBSE books are NCERT books. In fact, last year CBSE forced schools to only use NCERT texts. So I don't know what they mean by that.

Also, the article mentions that NCERT books were available for month and a half. Which is false. NCERT books have been available for free for years, they just also made them available on a few e-book formats a month or so ago, in addition to already available PDF. Cheap headline grab.

All CBSE books that they can publish that are not NCERT is an almost empty set.