GRIM DETAILS of what JACINTA SALDANHA wrote in her suicide note after falling prey to the royal prank callers.

Saldanha, 46 and a mother of three, left not one but three suicide notes, and in one, she lambasted her senior colleagues at the King Edward VII hospital in central London over how she was being treated in wake of the hoax.

 “One of the letters, which is the longest, deals with the hospital and is critical in its tone,” a source close to the family told UK’s The Daily Mail.

“Needless to say, (her husband) Ben Barboza wants a full inquiry into what happened and he wants to make sure the truth comes out.

“Within the letter, Jacintha calls into question some of the treatment she received at the hospital.”

In another note, Saldanha — a native of India and a devout Catholic — describes how she struggled to come to terms with the prank call of Aussie DJs Mel Greig and Michael Christian.

The third and final letter is practical and deals with her funeral plans, according to the Mail.

Two of the notes were found near her body at staff quarters at the private hospital in central London, and the third note was among her possessions.

In addition, Saldanha had also sent a number of emails and made telephone calls that police believe might help explain why she decided to take her own life.

Scotland Yard detectives are examining the notes and emails, as well as interviewing Saldanha’s friends, family and colleagues at the King Edward VII hospital.

Saldanha was found hanging by a scarf from a wardrobe in staff accommodations last Friday — three days after the prank phone call. There were also markings on her wrists.

Saldanha was the senior nurse on duty when she took a call at 5:30am on Tuesday from the two Australian DJs, who were pretending to be the Queen and Prince Charles.

She unwittingly transferred the call to a fellow nurse on Kate Middleton’s floor, who divulged confidential medical information about the condition of the Duchess of Cambridge, who was being treated for severe morning sickness, RadarOnline.com reported.

In addition to her husband, she leaves behind a son, Junal, 17, and daughter, Lisha, 14.

A memorial service is scheduled to take place in Bristol Friday night and a mass will be held for Saldanha at London’s Westminster Cathedral  Saturday morning.

The inquest into Saldanha’s death will resume on March 26.