Saldhana's role in the incident, which made headlines around the world, was telling the caller, “Oh yes, just hold on ma'am.”
Saldhana was married with two children. Her family has been informed.
Media reports said she felt “very lonely and confused” after the incident. A former neighbour of Jacintha Saldanha described her as a "nice,lovely lady''.
A spokesman for the royal family said: “At no point did the Palace complain to the hospital about the incident.''