Both the incidents took place yesterday. In the first case, a labourer identified as Venkatesh Madiwal from Ambernath was found dead yesterday on the railway tracks near Badlapur railway station after his wife Laxmi passed away on her way to the hospital on Saturday, following critical illness, they said.
Kalyan police is investigating whether it was accident or a suicide.
In another incident one Deepak Ambre of Lokmanya Nagar who was not keeping well, died while undergoing treatment at the KEM Hospital in Mumbai.
His wife Dipti could not stand the grief of her husband's demise and hung herself.
The Vartak Nagar police are investigating into the case, police said.