Bhavana very popular but why?

A actress who has become very popular these days is bhavana.The internet searches are filled with bhavana and nothing else.Bhavana started off with humble beginnings in a film called nammal where she even had on chance to show her face clearly!(she did role of a village carnival girl with face blackened)...What a way to begin.Then she slowly got promoted to sub roles and also a actress in heroine, but not too powerful roles.Bhavana career got wind when she jumped to tamil.Her body too began to bloom her full beauty.Then began her long journey as the BHAVANA THE GREAT.ThE very shy homely lady here too built her career slowly.She made just right mix of glamour and beauty.More over bhavana knows how to act.(her cry looks like cry...But few actresses make it a grin).Her telugu movies too were run away hits .What do you think can be the reason why bhavana prospered into really great actress?