As the Tamil Nadu government on Wednesday ordered to withdraw the general consent for a CBI investigation in the state hours after minister Senthil Balaji’s arrest, state BJP chief K Annamalai said Stalin is afraid that he will be the next — as there were allegations that the chief minister received a kickback of Rs 200 crore for a metro contract. “It seems like TN CM is afraid that CBI will knock at his door soon and has today taken an extraordinary measure in the curtailing entry of CBI in TN without the permission of the state government,” Annamalai said issuing a veiled threat.