Lokayukta Y. Bhaskar Rao had taken leave soon after the Special Investigation Team (SIT) arrested his son, Ashwin Yarabatti, from Hyderabad on Monday.
Senior officials at the Lokayukta office said that they were not aware of the developments as Justice Rao mostly kept to himself since the news of the scam broke out.
Though he had not been coming to office for the past few days, his absence had not disrupted any work, a senior official said adding that Justice Rao has not been attending any calls.
Meanwhile, the SIT officials are questioning Ashwin Rao and corroborating his statement with the other accused. The officials are also analyzing his Call Detail Records for details in the alleged corruption racket.
The focus of the investigation is now on the accused targets and the possible money trail which amounts to several crores.