The fugitive, against whom an international arrest warrant was issued by a US court, was sent to the US by an American Airlines flight late Friday night.
Additional Director General of Police (CID) T. Krishna Prasad said in a statement that the accused was extradited as per the permission given by the Indian government following the recommendation by the extradition court at New Delhi.
Rao, a native of Gandigunta village of Krishna district in coastal Andhra, had brutally murdered his wife Nerusu Jayalakshmi (37), son Siva (12) and daughter Tejasvi (14), on Oct 13, 2008 in Michigan, US, after he had lost his job.
After committing the offence, he fled to India. Subsequently, the US police informed the Interpol and issued Red Corner Notice (RCN) against the fugitive and the same was sent to CID, Hyderabad.
The CID on Feb 21 this year arrested Rao and a court in Hyderabad sent him to judicial custody. Last month, he was produced before the additional chief metropolitan magistrate court (extradition court) at Patiala House in New Delhi for the further process of extradition.