Justifiable homicide or a chargeable offense: Woman beheads man

So this man that has been stalking a woman for several months finally attacks her. She cuts his head off with sickle (she was out cutting grass for her cattle). She then proceeds to parade his head through the streets, is arrested (understandably), but after seeing the evidence (bites marks on her neck and cheek) and after getting statements, it is likely she will be charged with culpable homicide.

Culpable Homicide is an offence under s.299 of the Indian Penal Code (IPC), defined as :- "Whoever causes death by doing an act with the intention of causing death, or with the intention of causing such bodily injury as is likely to cause death, or with the knowledge that he is likely by such act to cause death, commits the offence of culpable homicide."
Anyone know the exact punishment for this? I could only find culpable homicide not amounting to murder which is a maximum sentence of 10 years.
As reference here is the article:
A woman chopped the head off a man who allegedly tried to attack her and then paraded the head through a market in northern India, police said Friday.
Police arrested the woman late Thursday after receiving calls from frightened witnesses who reported a blood-soaked woman holding a severed head was walking through the village, said police officer Ram Bharose.
The woman, 35, told police she had gone to a nearby forest to cut grass for fodder for her cattle when a man attacked her from behind.
"In a bid to save her dignity she beheaded him with a sickle," Bharose said, adding that the woman had bite marks on her neck and cheek.
The woman also told police that the man had been harassing and stalking her for three months and she had no regrets about killing him, he said, adding that she would probably be charged with culpable homicide.
The incident took place in Makkapurva village, some 125 miles (200 kilometers) southeast of Lucknow, the capital of Uttar Pradesh state.