A late-night patrolling was conducted in the Jama Masjid area of old Delhi on Thursday ahead of the Muharram procession, a senior police officer said. 

"The patrolling is part of an institutionalised mechanism that we conduct from time to time. However, keeping in mind the Muharram procession the day after tomorrow, to bring agility in the police force and inculcate the fear of law in the minds of mischief mongers, this is an exercise of the police force which we are doing", said Deependra Pathak, Special Commissioner of Police, Delhi on Thursday.