Here is the book for 7th class social science:

https://school.careers360.com/ncert/ncert-books-for-class-7-social-science

For the 7th Class new NCERT Social Science book, the best way to study is step by step. Start by reading one chapter at a time and make short notes of important points, dates, and definitions. Try to understand the concepts rather than just memorizing them. You can also highlight key points and draw diagrams or maps wherever needed.