They allow protest rallies and processions to happen on roads, but claim security hazard to stall the process in case of any "fun" event.
Take for example what happened on Thursday: Around 40 people, including two photo-journalists and ten policemen, were injured when a protest by BJP activists against Delhi government turned violent, prompting the police to use force.
The protest caused major law and order problems, but the police had no choice but to "mind" the protesters.
“As these protests are organised by political parties and have strong political motivations the police have no choice. But they do find ways to keep such concerts at bay that do not raise any security concerns," said an organiser of the Bryan Adams concert that could not be held in the capital as police did not give it a No Objection Certificate.
Others, however, believe protests and concerts can co-exist.
“The two however cannot be equated, as everyone has the right to voice their opinions. The police has to do the needful to maintain law and order. Concerts can happen in the city: many major events have taken place in the Capital. The only thing that organisers should do is get all the paperwork on time as it is a matter of security,” Maxwell Pereira, former joint commissioner of police (traffic).