Australian citizen of Indian-origin Rajwinder Singh, who had fled that country after killing a woman four years ago and was carrying a 1 million Australian Dollars reward on his arrest, was nabbed by the Delhi Police on Friday, officials said.

The Interpol had issued a Red Corner Notice against Singh (38) following which a non-bailable warrant was issued by the Patiala House Court on November 21 under the extradition act.