ADGP M Chandra Sekhar, who leads the Special Investigation Team (SIT) which is investigating illegal mining cases, on Friday filed a police complaint against Union Minister H D Kumaraswamy and his son Nikhil Kumaraswamy for reportedly threatening him to halt the probe against the former CM, PTI reported.

According to PTI, the probe against Kumaraswamy related to allegations that he illegally approved a mining lease of 550-acre to Sri Sai Venkateswara Minerals (SSVM) in Bellary district in violation of law during his tenure as Karnataka CM from 2006 to 2008.