New Delhi, May 11 -- A UPI payment helped police track three suspects involved in the killing of Chandranath Rath, an aide of West Bengal Chief Minister Suvendu Adhikari.

According to news agency PTI, the three accused were detained on Sunday and later apprehended by the Special Investigation Team (SIT).

The SIT was constituted to probe the murder of Chandranath that occurred in North 24 Parganas district's Madhyamgram area on the night of May 6.

Nearly a week later, police held three suspects in the case. Police told PTI that the investigation indicated that the assailants were from outside West Bengal.

The arrested persons were identified as Vishal Srivastava, a resident of Pandiyapatti in Bihar's Buxar district, while the two other...