"Bhola Nath Mahato (88) and his wife Aalo (85) drank pesticide and died," Vinod Kumar Singh, officer-in-charge of Bodam Police station, said.
As no male member was at home when the incident occurred, he said, the couple sent out the daughters-in-law to work in the field and drank poison yesterday.
The victims, who were living with their sons, were facing old-age problem for the last fortnight, Singh said while suspecting it as one of the reason to end their lives.