The landmine and the electronic gadgets were found during a routine search operation from a place in Barsol forest in Jamboni, Jhargram Superintendent of Police Bharati Ghosh said.
Nearly 3 kg explosives were contained in a tiffin can which was dug out of the soil and the computer was kept in a sack near a bush, she said.
Nobody has been arrested during the raid carried out by police personnel and jawans of 184 Battalion of CRPF.
