HYDERABAD: In the alleged phone tapping case, former chief minister and BRS President K Chandrasekhar Rao likely to be served notice by Special Investigation Team (SIT) today.It is learnt that KCR will be served notice asking him to appear before the investigators. However, it is yet to be known when he will be called.SIT led by Hyderabad police commissioner VC Sajjanar was directed by the government to probe the alleged illegal surveillance done during BRS tenure against then opposition leaders, businessmen and others.In the last ten days, BRS working president KT Rama Rao, BRS senior leader and Siddipet MLA Harish Rao was questioned by SIT as witnesses.