A spiritual leader who was due to lead a 1,500-strong yoga class was detained at Heathrow airport for eight hours, his supporters have said.
Swami Ramdevji, 47, who is also known as Baba Ramdev, was expected to lead the class in Glasgow on Monday.
But his supporters said he was stopped at Heathrow Airport on Friday.
Ramdevji was given a 24-hour visa and instructed to return to Terminal Five on Saturday afternoon, when supporters fear he will be told to leave.
The organisers of his visit said they have contacted Hindu temples throughout the UK asking for supporters to protest at the airport against the move.
Ramdevji reportedly has an 85 million-strong worldwide following and his own television channel in India.
He has run prominent campaigns in India, including hunger strikes, protesting against corruption in government, BBC informs.
