Hello Kartik,

The changes you are observing is a result of the Gujarat Board's decision to take up the CBSE syllabus. In attempt to bring in the CBSE syllabus , the NCERT books are being used.  You don't have to worry, the Gujrat board has not changed to NCERT, just a little change has been made for Gujarat board to use CBSE syllabus using NCERT books.