well i bought this book and well its review is as follows:-
all the chapter at a glance help a lot.
many mcqs and it helps a lot for competitive exams
some questions are exception and are of clas 11-12 level.......and these questions require a teacher to be understood!!!...
overall awesome book if read thorouly..... i got anice rank in olympiad (science)...

I am a certified buyer of this book and i liked this book because it is a good book for various science and maths Olympiads.
It also contains explanatory answers of some questions at the end of the chapter.
If you are preparing for Nstse I will recommend you this book.

Good for competitive exams . I liked this book a lot
It have a vast mathematics & chemistry section and Physics is also more than sufficient

Good one

Great

book is not as per syllabus even.
many mistakes.
No edition after 2006
looks like only purpose is to make money.
Unified council should not recommend this book.

This book has all the topics of the respective NCERT Phy,Chem, Bio and Maths books. This book is only useful for the OLYMPIAD NSTSE. If you practice this book thoroughly you can be one of the topper of NSTSE. But this book lacks the explanation and conceptual part! Hence, if you take NSTSE you can buy this book.