Kavitha (born: 30 December 1979[1]), commonly known as Kausalya (in Tamil, Telugu and Kannada film industries) or Nandini (in Malayalam film industry), is an Indian actress and model, who has starred mainly in South Indian cinema.

[2] Nandini was pursuing a modelling career, before she debuted in the 1996 Malayalam film April 19 by Balachandra Menon.

She went on to appear in many Malayalam films including Ayal Kadha Ezhuthukayanu (1998), Karumadikkuttan (2001), Sundara Purushan (2001), Shivam (2002), Udayam (2004), Vajram (2004), Maanikyan (2004) and Sooryan (2007).

By the mid-2000s, she turned character artiste and went on to portray supporting roles in films such as Thirumalai (2003) and Santosh Subramaniam (2008) and ventured into television with the series Manaivi which aired 436 episodes on Sun TV.

Her father Shivashankar Siddalingappa, a Bangalorean, worked as a depot manager at Karnataka State Road Transport Corporation.