Ca final dt- vinod gupta or manoharan

As your attempt is due in November 2016, you have ample time to cover your portions from Vinod Gupta modules. In order to help students to revise what they have studied a summary module is part of the entire modules made available.

Vast, comprehensive are terms associated with a subject like DT and in order to score good marks you need to do a deep dive in relevant chapters to score exemplary marks. Simply, do not waste your time thinking of too many books, just pick VG modules and study diligently with adequate revisions, you will come with flying colors.

Best of luck.

Yes, Sathish is right. There is no better book for DT than VG, the only consideration being the time factor. 

Since you have ample time, go for VG.