New Delhi, Sept. 1 -- A Chennai-based clinic has grabbed global attention with a cheeky billboard that combines wordplay, humour and a topical reference to Tesla CEO Elon Musk.

The ad, put up by Assana, a colorectal and gut wellness centre in Tamil Nadu's capital, tackles a subject often considered taboo, rectal health, but without crossing into anything crude or offensive. Instead, it uses wit to get people talking.

The Tesla and SpaceX chief has often spoken about his dream of making humans a multi-planetary species, with Mars being his ultimate goal. The Chennai clinic cleverly picked up on this narrative to push its own mission.

"Let Elon explore Mars. Our mission is Uranus," reads the billboard, which has now gone viral on social ...