Rajwinder from Patiala and Gurpreet from Mohali said, "We wanted to spread a positive message of Punjabiyat to others."
Residents of New Delhi and its suburbs endure poor air every winter as colder, heavier air traps construction dust, vehicle emissions, and smoke from the burning of crop stubble in the nearby states of Punjab and Haryana.
The BJP charged the opposition party with "promoting hooliganism," while the SP claimed the administration was "working at the behest of the ruling party."