It is Durga Puja and various pandals, prayers, and celebrations are taking place. Not to mention the huge statues & cut-outs.
Goddess Durga is ferocious to the demons and at the same time highly kind to her devotees.
The ten arms of Goddess Durga symbolize that she protects her devotees from all directions namely the eight corners and from the sky and the earth.
The ten hands of Lord Durga hold in them a conch, discuss, lotus, sword, bow with arrow, trishul, mace, thunderbolt, snake and flame.