Nurti
Nurti is associated with the Hindu Goddess of darkness and destruction and may be responsible for wiping out the habitants of Hanka P8X-987 except Cassandra.   She implanted a naquada bomb inside Cassandra in which she attempted to destroy earth's Stargate.  When the Asgards organized a treaty with earth, Nurti attempted to slaughter Chronos/Kronos and use Teal'c�s anger against Chronos/Kronos as a Aliby for herself.  Similar to Hathor, Nurti possesses a stealth device which makes her invisible.  She is fantastically acted by Jacqueline Samuda.

Mythology of Nirrti
Nirrti is the Hindu goddess of darkness and destruction.  She is not one of the three main Hindu Gods/Goddesses but is a feared one...

Picture of Nirrti