As you want I am here telling you about the price for Official Guide (OG) book for GMAT examination.

GMAT OG Book:

GMAT 2016 Official Guide Bundle Paperback – 1 Jun 2015
by GMAC (Graduate Management Admission Council)
Rs. 4,000.00

Some other books for GMAT exam :

Complete GMAT Strategy Guide Set (Manhattan Prep GMAT Strategy Guides)
Manhattan Prep
9,555.00

Kaplan GMAT Premier 2016 with 6 Practice Tests: Book + DVD + Online + Mobile (Kaplan Test Prep) PB
Kaplan
1,225.00

GMAT Sentence Correction (Manhattan Prep GMAT Strategy Guides)
Manhattan Prep
1,210.00

Cracking The GMAT Premium Edition (Graduate School Test Preparation)
Princeton Review
839.00

Kaplan GMAT 800 International Edition
Kaplan
1,254.00

Manhattan GMAT Test Simulation Booklet w/ Marker (Manhattan Prep GMAT Strategy Guides)
Manhattan GMAT
1,026.00