It is well aware among the film buffs that Pawan Kalyan's latest flick Annavaram has a touch of sister sentiment and Sandhya of Premiste-fame is playing his sister. According to film industry sources, Annavaram is neither the hero's name nor the place where he stays. But it is 'Anna' 'Varam'-A boon from a brother. Asin, who is away from the Telugu industry for the past some time is playing the female lead. It is surprising why the directors are after the sister sentiment these days. It may be mentioned here that 'Raakhi' of NT Ramarao is also based on sister sentiment. One had to wait and watch whether these sister sentiments will work on the audiences and shake the box offices.