The CBI team led by its Deputy Superintendent of Police also visited the Jamalpur police station this morning to look into the files regarding the case, sources said.
The officers visited Telkupi ghat on the Damodar river bank where skeletons of the two women were exhumed on 18 July last year in the presence of officers of CID and police.
The women were allegedly killed in the rehabilitation home and buried here at night, sources said.
The investigation was first delegated to the CID but was recently transferred to the CBI by the Calcutta High Court after it expressed dissatisfaction with the CID probe.
The rape and murders came to light with the discovery of a body on July 11, 2012. Police were tipped off that a deaf-mute woman had been killed and buried in the compound of the home for mentally ill women, run by an NGO, Dulal Smriti Samsad in Gurap.