Coimbatore: The trio, wanted in the murder of a woman in Annur on the outskirts and held in West Bengal yesterday, were brought to the city today, a top police official said.

Tracking the location of the criminals through mobile phone signals, a 10-member police team went to Jaipalguri in West Bengal and managed to take them into custody with the help of police there, District SP P Moorthy told reporters here.

The three, identified as Bindu Malik, Ajay Roy and Samrat, left for their native place after committing the murder of the woman, Rajaani and stealing Rs 1 lakh and six sovereigns of gold ornaments, he said.

Police managed to recover the booty from them, Moorthy said.

Asked about the rising involvement of a section of migrant workers in recent crimes, Moorthy said the department was monitoring the movement of such workers.

Though the department could collect details of the workers, who come through organised way, it was difficult to keep track of those entering in an unorganised manner and joining various industries, Moorthy said.

The department had already started creating a database of workers, he said.

The workers engaged for laying tiles for a newly constructed house strangled Rajamani to death and also given electric shock to Mayilsamy, the owners of the house, on December 25.