The fire broke out around midnight last night and soon spread to the other shops of the market, which is located in the courtyard of Guwahati Municipality office complex where temporary sheds of wood and tin roofing have been set up to house the shops.
At least 14 fire engines battled till this morning to douse the flames, the police said.
It is suspected that the blaze started from an electrical short circuit and burnt down cooperative stores, shops selling stationary goods, puja items, besides fruits, vegetables, poultry and fish.