Mangaluru: Notorious serial killer 'Cyanide' Mohan has been sentenced to life imprisonment by a court for the murder of a 23-year old woman from Kasaragod district of Kerala in 2006.

It was the 19th of the 20 murder cases slapped against him.

Sixth additional district and sessions court judge Sayeedunnisa said the life sentence will commence after he serves the sentence of imprisonment in the other cases.

Cyanide Mohan had 20 murder cases registered against him. He is accused of killing several women with the use of cyanide after befriending and raping them.

He has been awarded the death sentence in five cases and life imprisonment in three. Two of the death penalties were later commuted to life imprisonment.

According to the charge sheet in the latest case, Mohan met the victim while she was going to work at a unit of CAMPCO. He befriended and offered to marry her.

On January 3 in 2006, he took her to Mysuru and the two stayed in a lodge near a bus stand.

Like in all other cases, the next morning, Mohan asked the woman to remove her ornaments. The two went to the KSRTC bus stand where he asked her to consume a pill convincing her that it was a contraceptive. However, it was laced with cyanide.

The woman, who consumed the pill in the washroom, collapsed and was declared brought dead at a hospital.

As in previous cases, Mohan went back to the lodge, packed up and left along with her ornaments.

He was arrested later from Bantwal in 2009, after which he admitted to killing 20 women.

The judge directed the District Legal Service Authority to take steps to award compensation to the woman's mother under the Karnataka victim compensation scheme.