@red vrish it's Manasi or Manasa...bcz acc to Manasamangal Mahadev has a daughter name Manasa n this is not from Mata Parvati..she is the Godess of Snakes...but Devtas never accept her as a Godass bcz only lower cast ppl worship her...she fight for her place in haven n atlast won...she is the Manas Putri(adopted daughter) of Mahadev thats y her name is Manasa..^^^^ But what is the story of her marriage to Nahusha? Is it the same Nahusha who went after Indra's wife Sachi? It's hard to digest that a daughter of Shiva would have a husband who would ignore her and chase someone else's wife, which is probably a part of the reason why this story doesn't have traction. Not to mention that it doesn't seem to be a part of mainstream Puranas.
There was another daughter of Shiva - this time not from Parvati - named Manasi Devi, who was a badly ignored deity, so she has the reputation of being narcissistic and blessing anybody who simply acknowledges her divine status by worshiping her.