Books for ONGC Exam

I need the good exam books for ONGC GT exam, will you please provide here?

The ONGC GT Exam Pattern is:

The exam paper would be of Objective type (i.e. Multiple Choice Questions).

The exam paper would consist of three sections:
i) General Awareness test section– common to all.
ii) Specialization subject test section – specific to your subject.
iii) Aptitude test section– common to all, containing question from following areas:
a) Comprehension.
b) Reasoning (Verbal/Non-verbal).
c) Numerical Ability/Quantitative Aptitude.
d) Data Interpretation.

Duration for ONGC GT Exam 2012 is 3 hours.

Books:
ONGC GT Exam Prep Book General AwarenessGeneral Knowledge 2013: Essential 'Knowledge Capsule' in General Awareness & Current Affairs by Manohar Pandey; Publisher: Arihant

ONGC GT Exam Prep Book General AptitudeGeneral Aptitude: (Quantitative Aptitude & Reasoning) For Competitive Examinations by G.K. Publisher

Prep Book for ONGC GT Exam Specialization subjectTrends In Objective Geology by Ausaf Sayeed Publisher: CBS

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