The parcel that exploded resulting in the death of a man and his daughter in Gujarat’s Vadali on Thursday, was sent to their house by a person who was allegedly having an affair with the deceased’s wife, police said on Friday.

As per reports, the family opened the parcel and it exploded killing 32-year-old Jeetubhai Heerabhai Vanjara, a labourer, on the spot. His 12-year-old daughter Bhumika succumbed to her injuries on the way to the hospital.

Two other daughters of Jeetubhai also sustained severe injuries and are undergoing treatment at a hospital. One of them is reportedly on ventilator support.

Jeetubhai’s wife was out of the house when the incident took place.

Police said that Jayantibhai Balusingh Vanjara (31) sent the parcel to Jeetubhai’s house in an auto-rickshaw. The parcel, which appeared like a tape recorder, exploded when Jeetubhai tried to plug it in.

Senior police officer Vijay Patel said that Jayantibhai had travelled to Rajasthan to get the materials to make the improvised bomb, in which he used gelatin sticks and a detonator which was set off as soon as the “tape recorder” was plugged in.

Jayantibhai was arrested hours after the blast. Further investigation into the case is underway.