The Pettah Market also called Manning Market is an open market in the suburb of Pettah in the city of Colombo, Sri Lanka.In the heart of Colombo, Sri Lanka, is the madness of Pettah Market.It’s possibly the best place in Colombo to get initiated into the local Sri Lankan hustle and bustle, to ingest the sounds and smells, and to get a flavor of life in Colombo. At Pettah Market, life thrives.