Pettah is a neighborhood in Colombo, Sri Lanka located east of the City centre Fort. The Pettah neighborhood is famous for the Pettah Market, a series of open air bazaars and markets. It is Sri Lanka's most busiest commercial area, where most of the shops, textiles, buildings and many other business organisations are centered.
Pettah is derived from the Tamil word, Pettai, an Anglo-Indian word used to indicate a suburb outside a fort. Today, the Sinhalese phrase, pita-kotuwa (outside the fort) conveniently describes the same place. (Wiki)