i guess u r a keith williams fan
No, I am Keith Williams.
You can get locally produced versions of the books from The English Book Store (Himalayan Books) in New Delhi.
Or you can get UK produced versions from Sterling Book House in Mumbai. These are much more expensive than the Himalayan Books versions, but the UK versions also include an interactive CD version of my QB for all subjects.
Some of the mathematical questions in the DGCA exams are much more difficult than those in the JAR exams. If your problem is specifically related to the mathematical questions I am currently working on a new CD designed specifically for DGCA maths questions. But is it not yet ready for release.
If you wish I can send you some examples of DGCA maths questions that I have received from students in India. Just send me a PM with your e-mail address on it.