Savitri Tipanna (27) allegedly strangulated her son, Devraj, at their residence in suburban Chembur. The boy was rushed to Rajawadi Hospital, where he was declared dead on arrival, they said.
Police said they suspected Savitri's role behind the murder after noticing strangulation marks round his neck. During interrogation, she confessed to the crime.
Savitri was facing financial hardship and she could not afford the expenses for treatment of Devraj who was suffering from epileptic seizures and needed hospitalisation, they said, adding her alcoholic husband had died a long time back.