The prime accused in sister Amala murder case of Palai, Kerala--Satheesh Babu--has reportedly confessed to the crime. 

The 38-year-old Satheesh Babu, who hails from Munnad in Kasaragod, was arrested from an ashram in Haridwar, Uttarakhand on Wednesday night. According to reports, he confessed to have killed Amala during interrogation by a team led by Palai DSP Suneesh Babu DS.

Sister Amala murder: Accused Satheesh Babu has history of personality disorder, say Kerala police 

However, the motive behind the murder has not been revealed yet. The offender is suspected to be a serial killer.

Satheesh is likely to be brought to Kerala only after procuring a transit remand from Haridwar court.

The ashram officials told police that Satheesh had approached them for shelter saying he had lost his wallet. When asked about his relatives, Satheesh informed the authorities about his brother, who works in Kerala State Road Transport Corporation (KSRTC) depot in Kasaragod.

Priest Vishnu Nampoothiri then tried to contact Satheesh's brother, but he did not pick the call. He later sent a message to his brother's number and that helped the cyber cell of Kerala police track the ashram, from where Satheesh was arrested by the Uttarakhand police.

Sister Amala (69) of the Congregation of Mother of Carmel (CMC) was found dead under mysterious circumstances at the Lisieux Carmelite Convent in Palai on 17 September. 

The post-mortem report has confirmed that the elderly nun was murdered.

Watch the statements by the ashram pujari below: