"If found guilty in inquiries by the party, there will be no place for the person in the party," he told newsmen here.
Hitting out at ruling TMC for criticising BJP on the issue, he said many leaders of that party are in jail. "But criticisms are most against our leaders."
On questions whether BJP's name had been sullied in the child trafficking case as Chowdhury had allegedly helped Chandana Chakraborty, the head of an NGO purportedly involved in the selling of 17 children at high prices in the past few months, he said such rackets had rocked the state in the past few months.
Earlier, TMC Chatra Parishad, the party's student wing, held demonstrations against the alleged child racket outside the venue where Ghosh was addressing party workers.
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Meanwhile, the Jalpaiguri district administration today sealed off Ashray, a shelter run by NGO 'Bimala Sishu Griho' in connection with the Jalpaiguri child trafficking case.
The inmates of the shelter were shifted to another facility in the district.
Later in the day CID officers detained Manas Bhowmick, brother of Chandana Chakraborty, the arrested chairperson of the NGO for questioning in connection with the case.