A 38-year-old woman, who was suffering from a mental illness, allegedly jumped to death from the 18th floor of a housing society in the eastern suburb of Bhandup here on Friday, police said.

The incident took place around 9.45 am, when Rupali Prashant Nandvilkar jumped out of the balcony of her flat, when the rest of her family was busy with work at home, an official said.