Auto Shankar: In late 1988, nine girls from the Thiruvanmiyur section of Chennai went missing in a period of approximately 6 months. Investigators thought that the girls were sold into prostitution by their respective families, however constant denial by the girls' kin made them probe these disappearances in another way. In December of the same year, a school girl named Subalakshmi complained that an auto rickshaw driver attempted to manhandle and abduct her in front of a local wine shop. The cops went undercover and started working in the wine shop. It's from there that they discovered a man named Shankar behind this crime. Shankar would kindap these girls, kill them, cremate them and drop the ashes in the Bay of Bengal. It was only after his arrest that then he was known to be as Auto Shankar. Pic/YouTube

Auto Shankar: In late 1988, nine girls from the Thiruvanmiyur section of Chennai went missing in a period of approximately 6 months. Investigators thought that the girls were sold into prostitution by their respective families, however constant denial by the girls' kin made them probe these disappearances in another way. In December of the same year, a school girl named Subalakshmi complained that an auto rickshaw driver attempted to manhandle and abduct her in front of a local wine shop. The cops went undercover and started working in the wine shop. It's from there that they discovered a man named Shankar behind this crime. Shankar would kindap these girls, kill them, cremate them and drop the ashes in the Bay of Bengal. It was only after his arrest that then he was known to be as Auto Shankar. Pic/YouTube

Thug Behram: Believed to be one of the world's most prolific serial killers, Thug Behram, is said to have committed nearly 931 murders. He would utilise a ceremonial cloth to strangle his victims to death and was active between 1790-1840 in Oudh, northern central India. Behram was the leader of the Thuggee cult, who were notorious for committing a series of murders and robberies. He was executed in 1840 by hanging. Pic/YouTube

Thug Behram: Believed to be one of the world's most prolific serial killers, Thug Behram, is said to have committed nearly 931 murders. He would utilise a ceremonial cloth to strangle his victims to death and was active between 1790-1840 in Oudh, northern central India. Behram was the leader of the Thuggee cult, who were notorious for committing a series of murders and robberies. He was executed in 1840 by hanging. Pic/YouTube

Darbara Singh: An ex-army man, Singh murdered the children of migrants in Jalandhar, Punjab by slitting their throats. He even claimed to have had sex with their dead bodies and 'celebrated the murders by drinking alcohol and eating good food'. The main reason behind these heinous crimes was his hatred for migrants. Singh was awarded the death sentence in 2008, which was reduced to life imprisonment later. Pic/YouTube

Darbara Singh: An ex-army man, Singh murdered the children of migrants in Jalandhar, Punjab by slitting their throats. He even claimed to have had sex with their dead bodies and 'celebrated the murders by drinking alcohol and eating good food'. The main reason behind these heinous crimes was his hatred for migrants. Singh was awarded the death sentence in 2008, which was reduced to life imprisonment later. Pic/YouTube

Cyanide Mohan: Kumar aka Cyanide Mohan was tried and convicted for the murder of 20 women by a Mangalore fast court and later sentenced to death in 2013. He would lure women, who were unable to pay dowry or look for suitable husbands and give them cyanide pills claiming they were contraceptives. Mohan would then rob them of their jewellery. Apart from murder, Mohan was also alleged to have been involved in bank loan frauds and forgeries. He was also a physical education teacher at a primary school between 1980 and 2003. Pic/YouTube

Cyanide Mohan: Kumar aka Cyanide Mohan was tried and convicted for the murder of 20 women by a Mangalore fast court and later sentenced to death in 2013. He would lure women, who were unable to pay dowry or look for suitable husbands and give them cyanide pills claiming they were contraceptives. Mohan would then rob them of their jewellery. Apart from murder, Mohan was also alleged to have been involved in bank loan frauds and forgeries. He was also a physical education teacher at a primary school between 1980 and 2003. Pic/YouTube

Devendra Sharma: Despite being a successful doctor of Ayurvedic medicine, Devendra Sharma had a darker side. He wanted to earn quick cash by boosting cars but also didn't mind the blood that came with it. Between 2002 and 2004 Sharma stole cars and killed car drivers from many areas in and around Uttar Pradesh and Rajasthan. He ended up confessing to 30-40 murders and was later sentenced to death in 2008. Pic/YouTube

Devendra Sharma: Despite being a successful doctor of Ayurvedic medicine, Devendra Sharma had a darker side. He wanted to earn quick cash by boosting cars but also didn't mind the blood that came with it. Between 2002 and 2004 Sharma stole cars and killed car drivers from many areas in and around Uttar Pradesh and Rajasthan. He ended up confessing to 30-40 murders and was later sentenced to death in 2008. Pic/YouTube

Chandrakant Jha: The native of Bihar, who migrated to Delhi in 1986, was arrested and imprisoned for his first murder in 1998 until 2002. After his release, a labourer by profession, Jha went on a murder spree, where he would murder his victims, who were generally his employees for the slightest provocation, cut their bodies into many pieces and scatter them around the city. He did this so as to make police investigations a difficult task and also as revenge against cops, for the harsh treatment meted out to him during his first prison sentence. Jha was sentenced to death in 2013, after his arrest and conviction in 2007 for six counts of murder. Pic/YouTube

Chandrakant Jha: The native of Bihar, who migrated to Delhi in 1986, was arrested and imprisoned for his first murder in 1998 until 2002. After his release, a labourer by profession, Jha went on a murder spree, where he would murder his victims, who were generally his employees for the slightest provocation, cut their bodies into many pieces and scatter them around the city. He did this so as to make police investigations a difficult task and also as revenge against cops, for the harsh treatment meted out to him during his first prison sentence. Jha was sentenced to death in 2013, after his arrest and conviction in 2007 for six counts of murder. Pic/YouTube