The hot and sexy Bipasha Basu, who is always at her fittest best, just got notches hotter for "Katra", the latest song from her horror 'Alone'.

While everyone is raving about Bips look in the song, very few know that the actress went on a high-protein diet to get into the right shape for the song and cut out salt entirely to retain her curves but tone her body even further.

Confirmed Bipasha, "Yes, it`s true though I am otherwise very health-conscious and don`t take my fitness for granted, I had to change my regime and get on a high-protein diet for this song."

Together with Karan Singh Grover, Bips surely has re-written the formula of a love song with "Katra". And with the track topping the charts as maximum viewed one in web world, proves that no one can take the Miss Super Hot crown from the actress.

Watch 'Alone' Trailer