Though Tara & Kali are same yet their complexions are different. Kali complexion is dark whereas Tara complexion is blue. Tara killed the demon ‘Hayagreeva’. She has Lord Shiva lying under her feet like a corpse. Her bluish complexion’s beauty is magnified manifold by her three eyes, which appear like a blue lotus flowers. In her four hands she has a scissors, a head (skull), a lotus flower and an axe. She wears tiger’s skin on her body, and has a necklace of skulls around her neck. She is considered to be very violent in nature, but her eagerness to shower blessings on the devotee is infallible too. So she is the most merciful.
Tara or Ugratara is worshipped for the attainment of powers of speech, pleasures and even salvation. She is also worshipped for the destruction of enemies. Tara is worshipped in the night and is an another appearance of Shakti. She is considered to be the ruler and preside of miraculous effects and accomplishments.

Maa Tara its called the Goddess which give all round prosperity to the worshipper , She give power of speech , pleasure and salvation , she also worshipped for the destruction of enemies in tantrik method .It remove the malefic effects of planet JUPITER . IT should be worshipped by businessman for expansion of business and name and fame.