although, i have read C++ books in my past, but as my placement session is there, i just want to have some books from where i can see everything in shortest and concise possible. classes, polymorphism, inheritnce concepts etc like this . any book which u can tell me ? it will be good if i can have e-book of that. thanks.

How about a C++ reference site that includes references for different revisions of C++ and has a search feature that will also search it's forums?

CS with sumita arora is a very good and super concise book for brushing up C++ basics.