"We came to know that another attack has taken place in Australia. It is unfortunate that things are not moving as they promised. It is very disturbing for everyone of us in the government as well as for the people of the country," Overseas Indian Affairs Minister Vayalar Ravi told reporters here.
He asked the Australian authorities to act tough on the perpetrators of such crime and put them behind bars.
A 29-year-old Indian man named Jaspreet Singh was today set on fire by four assailants in Melbourne. The attack comes a week after 21-year-old Indian graduate Nitin Garg was stabbed to death in the same city while he was on his way to his part-time job in a restaurant.
"I want to make it loudly clear that the (Australian) government should take preventive action," he said.
Ravi claimed police know the elements behind these attacks and the persons committing these crimes.
"Why cannot they arrest them and put them behind bars and prosecute them. My suggestion is that please take preventive action against these elements. Our government expresses serious concerns and waiting for better results," Ravi said on the sidelines of Pravasi Bharatiya Divas function here.
Seeking "preventive arrest" of such criminal elements, Ravi said, "the Australian police must be efficient enough to mark these people, who are creating this and it is for them to understand."
He said every incident is a matter of serious concern for the government.
Two Indians have been killed within a week in Australia. Today's incident of setting ablaze has made the students more scared in Australia.