GATE Computer Science & Engineering: Pervious Years' Paper & Practice Test Paper (solved)

The book starts with a collection of five practice test papers for GATE 2012 CS stream as per new format (according to author's claim), but unfortunately you would not find a single aptitude question in any of those papers and the number of questions is 90 per paper carrying a total marks of 1*30 2*60 = 150. Moreover, almost all of the questions have been copied from other sources with a lot of misprints and wrong answers. And they have copied it so badly, that in some cases, you will find the same question twice in one paper and parts of linked answer/common data type questions copied from elsewhere with the common data missing. Even you as a student can write a much better book having similar contents. Don't buy it.