A woman who set her sons alight after feeding them cakes laced with sleeping pills sent a chilling suicide note to a friend saying she would 'try her luck in her next life' before committing the horrific act.

Anitha Mathew, 37, doused the family's home in Clayton South in petrol before setting it alight on June 1 in 2012, after giving her sons Mathew, five, and Philip, nine, cheesecakes filled with the drug Stilnox.

A court heard, Ms Mathew, who also died in the blaze, wanted revenge over an unhappy marriage after she was 'frozen out' by her husband,The Age reported.

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Anitha Mathew (pictured) who set her sons alight after feeding them cakes laced with sleeping pills sent a chilling suicide note to a friend saying she would 'try her luck in her next life' before committing the horrific act

Anitha Mathew, 37, doused the family's home in Clayton South in petrol before setting it alight on June 1 in 2012, after giving her sons Mathew, five, and Philip, nine, cheesecakes filled with the drug Stilnox

She also left a suicide note on her car.

Ms Mathew and her husband George Philip were in an arranged marriage and were going through a relationship breakdown. Mr Philip was in India at the time of the incident.

In his findings last week, Judge Ian Gray found Mr Philip gave Philip $500 before going overseas and was reportedly not speaking to his wife at the time of the fire after an argument about her cooking.

Mr Philip told the court his wife had threatened to kill her family in a phone call with a cousin in Canada, according to The Courier Mail.

Ms Mathew and her husband George Philip were in an arranged marriage and were going through a relationship breakdown. Mr Philip was in India at the time of the incident

After the death of the two young children, a shrine was made by the students of St Peters Primary School

Forensic police searched the property following the fatal fire

'If nothing happens, I am going to kill him. I am going to die. I'm going to kill everybody,' she said.

The court heard Mr Philip committed family violence toward his wife by being controlling and demeaning.

But, Judge Gray said this did not give Ms Mathew 'the right' to kill her sons.

'The tragic irony is that, in doing so, Ms Mathew has committed the ultimate family violence in this case,' he said.

Mr Mathew told the inquest he was not a 'forceful' husband.

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