Chandi or Chandika is a Hindu deity. Chandika is another form of Mahadevi, similar to Durga. Chandika is a powerful form of Mahadevi who manifested to destroy evil. She is also known as Kaushiki, Katyayani, Asthadasabuja Mahalakshmi and Mahishasuramardini.

Katyayani (कात्यायनी) is an aspect of Mahadevi and the slayer of the tyrannical demon Mahishasura. She is the sixth among the Navadurgas, the nine forms of Hindu goddess Durga who are worshipped during the festival of Navaratri. She is depicted with four, ten or eighteen hands. This is the second name given to the goddess Adi Parashakti in Amarakosha, the Sanskrit lexicon.