How do you convey the dark side of ‘purity’, an obsession of Kaala’s nemesis, Hari Dada. Santosh Narayanan brilliantly executes this idea by deploying a woodwind instrument like flute to convey the villainy of the oppurtunistic politician. Usually flute is used to convey a mellowed, sombre emotion, but Santosh Narayanan uses it to convey slyness.