This is my digital rendition of the Nityaklinna Nitya.
Her name means Wet Nitya, or Always Wet. The third Nitya’s mantra is Aim Hrim Shrim Nityaklinne Madadrave Svaha im Nityaklinna Nitya Shri Padukam Pujayami Tarpayami Namah.
She is surrounded by 19 Shaktis, according to the Tantraraja, who are Kshobhini, Mohini, Lila, Nitya, Niranjana, Klinna, Kledini, Madanatura, Madadrava, Dravini, Vidhana, Madavila, Mangala, Manmatharta, Manashvini, Moha, Amoda, Manomayi, Maya, Manda and Manovati. The Nityaklinna herself, the same tantra says, is restless with desire, smeared with red sandal paste, wears red clothes, smiles, has a half moon on her head, and holds noose, goad, cup and makes the mudra dispelling fear.
The Dakshinamurti Samhita (chapter 42) gives her root mantra as being of 11 syllables, Hrim Nityaklinna Madadrave Svaha. The image is similar except that she holds a noose, a goad, a skull and dispels fears. Her face is bathed in sweat and her eyes move with desire. Here the yantra is described as trikona, eight petals, and earth square (bhupura). She bestows enjoyment and liberation and subdues the three worlds for one siddha (successful) in her vidya (mantra).