As you want I am telling price info of OG (official guide) GMAT Prep Book,

The Official Gmat Guide 2016 Paperback (english)
Rs. 1,479.00

Official Guide For Gmat Quantitative Review 2016 With Online Question Bank And Exclusive Video Paperback (english)
Rs. 683.00

Gmat 2016 Official Guide Bundle
Rs. 5,340.00

Cracking The GMAT Premium Edition (Graduate School Test Preparation)
Rs. 829.00

Complete GMAT Strategy Guide Set (Manhattan Prep GMAT Strategy Guides)
Rs. 10,990.00

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