How Can I get DotA 2 beta key?

Today I want to share how to get DotA 2 beta key. Valve has started sending out 3 DOTA 2 Beta invites to players who registered during Beta signup. They survey you about DotA skill and experience.

How to complete DOTA 2 Survey:

1. Download Steam and login your Steam account
2. Do the survey DotA2 : steam://takesurvey/1/
3. Complete the survey by providing the details.
4. After completing the survey, Wait for an email from Valve containing your DOTA 2 Beta Key.