Subramanyam has been living alone in her flat for the last 25 years and is on local police's list of 'senior citizens requiring care and protection'.
Two of her children live in the United States while another son lives in Bengaluru.
As her children could not visit her today on her 83rd birthday, Matunga police, who help her with chores such as medicine-purchase and bank transactions, decided to give her a surprise.
Officials from the police station reached her house this morning with a cake and bouquet of flowers.
More From This Section
An overwhelmed Subramanyam blessed the officers.
"She is like my mother...She was very happy with birthday celebration," said inspector Kakad.
"She said her children visit her few times a year but are unable to come frequently," he said.
Mumbai police have a dedicated helpline 1090 for senior citizens. Senior citizens living alone call the helpline if they require any help, or, sometimes, just because they are feeling lonely.