The complaint was lodged yesterday with the Cyberabad Police, he said.
Siva, also the winner of the first season of 'Bigg Boss Telugu', said some people whom he did not know, made "abusive" comments against his wife on the social networking site and sought action against them, the official, attached with the Cyberabad Crime Branch, said.
"Following the complaint, a case has been registered under relevant sections of the Information Technology Act and a probe is underway," he added.