Melbourne: A memorial plaque honouring a 41-year-old Indian woman who was stabbed to death in Australia early this year was unveiled during a memorial service here. Prabha Arun Kumar, who hails from Mangalore, was stabbed to death in March in Sydney and the motive of the attack is yet to be ascertained.

The pathway where she took her final steps before being stabbed to death has been re-named as Prabha's Walk.

Several family members including Prabha's daughter, husband and parents from India and friends gathered in the park yesterday on the day after what would have been her 42nd birthday.

"What I'm going through no-one should go through. I want justice," her husband Arun Kumar said during the service, adding that his wife was a "very caring, loving wife".

"It was very hard. I don't want this to happen. I'm helpless now, I can't do anything," Arun said. The family took the same path Prabha took on the fateful night when she was killed. According to media reports, NSW Police helped the family make the trip to Australia to attend the memorial service.

The service was led by a prayer and flowers were laid on the bench unveiled in Prabha's memory. Arun also appealed for information into the murder which still remains unsolved.

"I hope they (NSW Police) will find the murderer and I am trusting them," he said.

Prabha's brother Shanker Shetty said it meant a lot to the family to see the community come together for the memorial service.

"My family is overwhelmed with the support they have received. Coming all the way from another country to feel the warmth of the people they are purely overwhelmed," Shetty said. He said his sister was a "quiet girl" who would never harm anybody.

"Why would anybody in this world like to hurt her? I believe that there's somebody out there who knows something about this, I hope somebody comes forward," Shetty said.