NATTI, MATA (d. 1664), also referred to in chronicles as Ananti, Nihalo and Mata Bassi, was the wife of Baba Gurditta (1613-38), the eldest son of Guru Hargobind (1595-1644). She was the daughter of Bhai Rama and Sukhdevi, a Khatri Sikh couple of Batala, in present day Gurdaspur district of the Punjab. Her marriage to Baba Gurditta took place on 17 April 1624. Two sons, Dhir Mall and (Guru) Har Rai, were born to her on 11 January 1627 and 18 January 1630 respectively. 

After the death of Guru Hargobind and the departure of Mata Nanaki for Bakala in 1644, Mata Natti was the head of the Guru`s household during the times of Guru Har Rai and Guru Har Krishan. She died at Kiratpur on 29 September 1664.

References :

1. Sohan Kavi, Gurbilas Chhevm Patshahi. Amritsar, 1968
2. Santokh Singh, Bhai, Sri Gur Pratap Suraj Granth. Amritsar. 1927-35
3. Macauliffe, Max Arthur, The Sikh Religion. Oxford, 1909