The 12th Class CBSE Book Key Notes For Class 12 NCERT has a collection of the most important notes and topics from the NCERT book for Class 12. The app is very useful in two scenarios. The first is to help you in your homework and the second is to help you throughout the year to complete your homework on time and double check the answers. The app is useful in both offline and online mode. You can use it to help you in your homework and to get the answers to the questions you have in the exams. The app is very easy to use and it is designed to be used by students to help them prepare for the NCERT exams.