@ramkiarchu
You mentioned that on Jan 2012 session, there were very little questions from Keith williams or GSP or Oxford....
Then where did the questions come from... I don't think there is any other books except the ones you have mentioned...
Is it possible that since everyone is studying from the JAA heavyweights like OXFORD or KEITH WILLIAMS, DGCA decided to change the stratagy & ask simpler question which may just leave everyone confused......