11. K.D. Kempanna: Cyanide Mallika
Nicknamed ‘cyanide Mallika’ for her choice of weapon, K.D. Kempanna used to lure her victims to their death by posing as a ‘godwoman’ and asking them to meet her at deserted areas, where she would then poison the with cyanide, and robbing them.
She was finally arrested in 2009 and initially sentenced to death for her crimes. However, the sentence was later changed to life imprisonment.