Hello every one .....when/how to start prep for GMAT

[greatest]

Well I am studying first year of Chartered Accountancy along with Bachelor Of Commerce in India.
I want to know when and how to start preparation for GMAT and I also wanna know the best material to begin.
(Is it Kaplan/Manhattan/Official GMAT?)
And what is the decent score to get into a business school in United States without having much experience......(Pls also provide me links to various solved questions,experiences and blogs if possible)

[Brent@GMATPrepNow]

Signing up for BTG's free 60-Day Study Guide (https://www.beatthegmat.com/mba/gmat-guide) is a good place to start.
Each day you will receive an email with a series of learning activities that will guide you, step-by-step, from Day 1 to test day (an outline of all 60 emails is here: https://www.beatthegmat.com/mba/gmat-guide-outline).
This will ensure that you will cover everything that the GMAT tests.

Cheers,
Brent

[greatest]

Thanks
Can I have more advices from the experts?