- So, NCERT is must for Biology and Chemistry. (People often ignore it and later realise the value thus regret)
- Additionally, Allen modules;
~ Chemistry: More than sufficient to use. It has enough types and number of numericals. Theory content is extremely great.
No extra reference book is needed.
~Physics: It has extremely great theory and illustrations. It has good types of basic question but number of numericals are very less.
I would recommend any other objective books for physics too. Eg:- Errorless, DC pandey etc.
~Biology: Well module has more than sufficient extra points and questions.
But it’s OK if you completely rely on NCERT.