Where do LB Nagar families pass on last year's school books?

Clearing his shelf before the half-yearlies and found the whole set of class 4 textbooks and workbooks, some of them barely used. Feels wrong to give them to the raddi man by weight. Is there a colony group, a shop or a school drive around LB Nagar or Kothapet where they'd reach a child going into class 4 next year? Not looking for money for them.