It's the "Stains Happen" campaign for Procter & Gamble's product called "Ariel" (like Tide) put together by ad agency Saatchi & Saatchi. Apparently Ariel is quite well known around the planet and P&G has recently lowered its price by half to get more Indian woman to use it. For more info about it jasmine-scented appeal:
http://www.pg-india.com/hp/ariel2.htm
Once you know that, the idea is kind of clever.
chicago doesn't have such street corner art does it ..
