Recently i have changed my domain prefrence in the webmaster tool earlier it was funwidmasti.com and now it is www.funwidmasti.com will this effect my index pages..??? Also can u tell me that changing prefred domain settings effects the the backlinks that were made for funwidmasti.com..???
No... it should not change any of your web properties... Google will consider the changes itself... don't worry...
Google will not consider the old backlinks as i have noticed a downfall in backlinks shown to me by webmaster tool
what you have done is correct.The changes will be automatically corrected by Google and there is nothing to worry about it