A man who had killed his aged mother months back and buried her at Valavarayanakuppam near Kuthalam in the district was arrested by the police on Wednesday.
After murdering and burying his 82-year-old mother Uyyammal in the backyard of his house during April, Kaliamoorthy had initially told his neighbours that she had gone out of station.
He had then subsequently maintained that she had gone missing.
The neighbours had suspected Kaliamoorthy's complicity in his mother’s disappearance as the two used to quarrel often.
Their suspicion was strengthened after a strong stench emanated from his house.
On receiving information from the neighbours, Perambur police visited the crime scene and exhumed the body.
Kaliamoorthy was arrested and remanded in judicial custody.