Chennai, Apr 25 (UNI) Launching a blistering and stinging attack on Tamil Nadu Chief Minister M K Stalin, further amid the simmering differences between the Government and the Raj Bhavan on a host of issues, Governor R N Ravi on Friday evening said his act of preventing Vice-Chancellors of State Universities from participating in the conference convened by him at Udhagmandalam, reminisces the days of Emergency.