Engineering is a wide area, every area has its books for example for Electronic Engineering, I enclose for you the book title which from my point of view is the  best book for the Electronic Engineering Students:-

Infotech; English for Computer Users, Students Book, Second Edition, Santiago Remacha Esteras, Cambridge University Press, 1999, ISBN 0 521 0 521 65720 2 Student Book.

Prof. S. EL-Rabaie

Basically, I am also looking for Electrical and Electronic Engineering books. But how can I get this book from Bangladesh?

I recommend the textbook entitled 'Cambridge English for Engineering'. The author is Mark Ibbotson.