A 28 year old woman and her child were abducted on May 19 from their residence after the abductors broke into the house.
The woman and the child were taken away in a van by the abductors who had later demanded Rs, 500,000 as ransom.
Both the woman and the child were found the very next day, the police media unit said today.
The police said that four suspects were arrested over the incident and a hand grenade was also recovered.
Meanwhile in a separate incident the Colombo Crimes Division (CCD) arrested three suspects in Mawanela over an attempt to abduct a person and obtain ransom.
The police said that the suspects had attempted to obtain Rs. 2,500,000 as ransom.