Hi all,
Its my 12th post, I think, I got answer for every post quickly. Thanks a lot for all Unity Forum members they did great job and spent their valuable time 
I have a question, how to attach sounds to textures, I mean if player run on a Terrain if his foot touches the grass texture then play sound relative to this, if foot touches rock texture (or stone) then play appropriate sound. 
Please anybody help me.
Thank you,
Not possible with some hackery and interpreting the value of the splat map as the gras map never exists at that point in any other way than visual (its blended in realtime through a pixel shader)
I would recommend that you become a bit more patient. You asked less than 16h ago and are already bumping, which is definitely too early (bump it if nobody answered within 3 - 7 days)
Thanks for your suggestions, dreamora.
Thanks for all unity forum members.