Mann was pulled up (rpt) up by the Speaker when he appeared before her at 11.10 am, sources in her office said.
As the issue rocked both Houses of Parliament with MPs demanding strong action against him, the Lok Sabha member from Sangrur said he had made the "mistake inadvertently" and that he had no intention of compromising the security of Parliament.
Contending that he had no intention of compromising the security of Parliament, he said, "I apologise unconditionally. I will not repeat it in future."
The Speaker, however, was not impressed by his apology, saying it was a matter "too serious" considering that Parliament has been attacked by terrorists once.
Mahajan later told reporters that if it had been a matter concerning the proceedings inside the House, she would have taken action immediately.
She said this matter is above ethics or privilege as it concerns the security of Parliament and MPs who are the representatives of the people.
In this context, the Speaker noted that Parliament complex has already been attacked by terrorists on December 13, 2001 in which 13 people lost their lives.
