Pettah Market, Colombo
This is one of the busiest and the largest open-air markets in Sri Lanka. Shopping around this market is surely going to satisfy your retail therapy. It covers a wide range of items including clothing, consumer electronics, knick knacks etc. You will also be able to find some amazing deals, which are surely going to get you excited.
Make sure you learn the art of haggling, which your local guide can teach you! Soak in the sights and sounds of this market as shopping here is truly a memorable experience. It is a memory that you will cherish for quite some time.