Dear aspirant,

There are various telegram channels which provide short notes for NCERT you can join some of them and download the short notes from there. NCERT Books and Solutions is an app which not only provide latest and old books both of NCERT but also solutions and short notes of the chapters of NCERT in a systematic way. It also provides test papers. A series of app made by SUPERCOPS for different classes is also a nice app as it provides short notes of all the chapters of all the books of NCERT in a diagrammatic way. Various YouTube channels are also there which will explain the chapters of NCERT and help you learn them.

Hope this helps.