Written Will Example I Have To Get Course Material Written From Class 3 To Class 12 On CBSE Format? What Will Be Cheapest Option?

I have to get course material written from class 3 to class 12 on CBSE format? What will be cheapest option? - written will example

Subject of mathematics and natural sciences (physics, chemistry, mathematics, biology), Commerce and Arts (Environmental Studies, Geography, History). The content of the course will have a theoretical explanation and worked examples, group exercises, suggestions for practical activities to 20 questions series of objective questions to be solved.
I want to write the material in clear and accurate picture to explain the concept.