0 backlinks from yahoo and google.

How can i obtain reverse relations starting Google as well as yahoo...Bing having 43?

You need to use tools check the backlink from google

yes i have to use this type of backlinks

Exactly right, G will not considered all your back links , but it's always gives weight to those links only and only if that link not containing rel="nofollow",
Though Google is bit cheaper to count Back links.

i am agree with your clear description because Google is cheeper the other because its not give you better result for your mind related .. so you don't put no follow links