Prayagraj:Kannan Gopinathan, a former IAS officer from Kerala, was detained by the city police soon after he had arrived at the airport here on Saturday.
Gopinathan had arrived in the city from Delhi to address a two-hour symposium organised by the All India People's Forum on the issue of 'Nagrikta Bachao, Samvidhan Bachao, Loktantra Bachao' (save citizenship, save constitution and save democracy).
The news of his detention came to light after Gopinathan tweeted about his being stopped from moving out of the airport.
"As soon as I came out of the flight and was going towards the exit, around ten policemen approached me, asked my identity and when I told them my name, they escorted me to some VIP lounge and thereafter to some security room", the former IAS officer said.
"The police asked me about my further plan, after leaving Allahabad and when I told them that I have to catch a flight for Bokaro from Delhi on Saturday night, they sent me back from the return flight to Delhi."
Gopinathan had hit the headlines when he resigned from his service after the abrogation of Article 370 which he termed "was a violation of the fundamental rights of the people of Jammu and Kashmir".