Taking a lesson from the recent ink attack on Chief Minister Arvind Kejriwal, the Delhi Police on Monday did not allow fountain pens at a Republic Day event here as a preventive measure.

A young woman had on January 17 thrown ink on Kejriwal at a public function due to which court had also rapped the Delhi Police, saying the incident was a "clear-cut case of security lapse" and the force did not behave responsibly in protecting him.

A Republic Day celebration was organised at Chhatrasal Stadium in North Delhi where the Delhi CM was a chief guest.

"We are not allowing any fountain pens inside. If anybody is found to be carrying one during frisking he or she will be asked to leave it outside," a security personnel said.

The ruling Aam Aadmi Party had launched a scathing attack against the Delhi Police accusing it of security lapses over the ink attack on the Chief Minister.

Later, Police Commissioner B S Bassi had rubbished the AAP's 'security lapse' allegations.