The BJP on Wednesday indicated it would expel its MP Babubhai Katara who allegedly tried to take a woman to Canada on his wife's passport.
BJP chief Rajnath Singh, who found the charges against the Gujarat lawmaker serious, asked the party to obtain full account of what all had happened with him at the airport from official channels.
He told the party that tough action would be taken against him if the charges were authenticated by officials.
"If it's all true such a person can have no place in the party," BJP spokesman Prakash Javadekar told reporters. "This is quite a serious and sensitive matter".
Katara, who represents Dahod in the Lok Sabha, was detained by immigration officials when they found out that the woman who was travelling with him on his wife's passport was one Paramjeet and not his spouse Saradaben.
They were to board Air India flight 187 to Toronto, which was scheduled to depart at 7.30 am.
Immigration officials detained the two for questioning and later handed them over to the police.