Before the BWF World Championships, Delhi turned to men mimicking langurs to keep monkeys away. The evidence for why it might — or might not — work.

Here's what PV Sindhu had to say about the organisers arranging langur calls to deter macaque intruders at the BWF World Championships.

Monkey mimics will be employed to deter primates at the upcoming badminton World Championships in New Delhi. Organizers are using langur monkey sounds to keep rhesus monkeys away…