Its November 2020, and the gulls are back in Delhi. Every year, they come from as far as Siberia, and choose the polluted waters of Yamuna in Delhi as their stay for almost 4 months. I would wonder, why do they choose the polluted waters of Delhi, when they car go at so many other places with better air, cleaner water and no pollution. But now, I think I understand the reason, and that is to remind us, that if we don't work out a solution to pollution, soon we won't be able to cherish this beautiful and wonderful sight.