The Centre for Maintaining Peace and Order (CMPO), which is overseeing the government's response to the protests, directed immigration authorities and police to start procedures to deport Satish Sehgal, Thai news agency MCOT reported. (Agencies)
Sehgal, chairman of the Thai-Indian Business Association, was a core member of anti-government protests aimed at ousting Prime Minister Yingluck Shinawatra.
Authorities had warned last month that action would be taken against five non-Thai protesters for their active role in demonstrations led by former Democrat lawmaker Suthep Thaugsuban.
Last month, Sehgal led a group of protesters in Bangkok's business district and called for the elected government to quit. He also publicly criticized the government and showed his strong affiliation to the opposition Democrat Party.
Thailand has a sizable population of ethnic Indian businessmen who have largely remained focused on increasing their business presence.
On January 22, the caretaker government put Bangkok under a state of emergency for 60 days to quell the protests.
CMPO Director Chalerm Yubamrung warned he would use stringent measures, without prior warning, against People's Democratic Reform Committee (PDRC) protesters who occupy government offices.
"From today, I will take stringent legal measures under the emergency decree to arrest people who block government offices or raid other people's houses. Police can arrest them immediately on seeing them do so," Chalerm, the labour minister, was quoted as saying by Bangkok Post.
"There will be no more warnings. Tear gas won't be used, but shields and truncheons will be. In the event there are not enough police at a blockaded spot, reinforcements will be sent there."
The PDRC has been leading protests for neatly three months in a bid to topple Yingluck. It has been demanding that she should hand over power to an unelected "People's Council" to carry out massive reforms aimed at curbing the political dominance of the Shinawatra clan.
The Centre for Maintaining Peace and Order (CMPO), which is overseeing the government's response to the protests, directed immigration authorities and police to start procedures to deport Satish Sehgal, Thai news agency MCOT reported.