New Delhi, Nov 4 (ANI): Bollywood actors took a stand on Delhi pollution. Priyanka Chopra recently posted a picture of her with mask on her face and expressed concern for Delhiites and especially those who are homeless. Adding how blessed she is with 'air purifiers' and 'masks', the actress added, "Pray for the Homeless. Be safe everyone." Meanwhile actor Rishi Kapoor also took a dig at the dipping air quality. He shared an image on his twitter account expressing concern over the air quality of Delhi. Delhi is witnessing a dip in air quality with several areas showing the air quality in the 'severe' category. The capital and its adjoining area have been covered in thick blanket of smog due to rising pollution from past few weeks.