Central Board Of Secondary Education [CBSE] — Regarding books and Notebooks

Hello cbsc team,

My humble request, in general different (Lower class, middle class and upper class) students are studying in schools.
Why schools are suggesting particular stationary shop, please maintain common syllabus for all cbsc schools from 1st class on-wards, because parents are fighting long back but there is no use try to under stand my problem then books are available all stores. Now a days some schools are doing like without note books, text books are not selling. Based on school management instructions stationary shops are following.

Please respond...
This problem will solved whole india parents hats up to cbsc team.