According to MC officials, Stan Autos had personalised the green belt area of the MC and had enclosed it by installing grills.
In addition, they were also using a part of the area for parking vehicles.
As the MC team went ahead with the anti-encroachment drive, the staff of Stan Autos pelted stones and caused a traffic jam for nearly half an hour.
The parked vehicles were, however, removed and the grills were demolished, said DSP Amandeep Kaur.