The victims identified as Ashok H Shah (58) and his wife Ila (56) ended their lives last evening by hanging themselves from the ceiling of their house in Saidham Apartment in Borivali west.
Police recovered a note from the site, which says that nobody should be held responsible for the suicide.
According to police, the note, written in Gujarati, revealed that they were depressed over financial problems.
"The victims stayed with son Mihir, his wife and their son. Both-- Mihir and his wife-- are child specialist doctors. At the time of incident, Mihir's wife and son were in Ahmedabad at her maternal home. When Mihir returned home around 10.45 pm, he found it locked from inside," police said.
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They were rushed to Shatabdi hospital, where they were declared brought dead. A case of accidental death was registered in this regard.
The victim has a daughter, who stays in Dombivali with her family.
Further investigation into the case is on.