DSP CID Sankarprasad Bhattacharya and CID Inspector Tirthankar Sanyal who went to Bandnabagram village near Santiniketan to meet the family members spent around one and half hours in Ghosh's house.
The officers did not comment on the progress of investigation.
The SIT officers also met the investigating previous officer Biswajit Chatterjee at Suri and received the case diary and other documents.
The High Court had yesterday formed a four-member special investigation team to investigate the killing and file an interim report after a fortnight.
He was shot on July 21 last year at his home and succumbed to his injuries at a hospital two days later.
Ghosh had won a seat in the panchayat polls as an independent after being denied a ticket by the Trinamool Congress.