Ammini was born on 1955 September 10, as the daughter of Mammalayil Yakob and Saramma. At the age of five, she started her education at Asad Lower Primary School in Srapilly. Then, she continued her studies at the Government Upper Primary School in Vettithara from the fifth grade onwards and then finished her high school education up to the 10th grade at the Government High School in Poothrikka. In 1977

She married to Joseph in 1977, the younger son of Cheranapadavil Yohannan (Nellippallil family) and Mariyamma (Mannutharayil family (Potharay)) residing at Edavattam (Manakunnam) near to Thalayolaparambu. He was serving in the Indian Army Corps of Signals which handles Military communications for the Army. After our marriage, we lived for some time in his places of work, including Rajasthan and West Bengal. They are blessed with two children Ajai and Vijai.

Their elder son Ajai Joseph, is a Central government employee serving at ISRO. Ajai's wife, Divya Varghese, is the daughter of Varghese and Annakutty from the Marikkudi Padayattil family at South Vazhakkulam, Aluva, Divya works at Kunnathunad PCARD Bank Perumbavoor. Ajai and Divya have three children: Eva Anna Ajai, Augen Joseph Ajai and Ega Anna Ajai.

Their younger son, Vijai Joseph, is a Kerala government employee serving at Govt. Polytechnic College Kaduthuruthy. Vijai's wife, Linu Aliyas, is the daughter of Aliyas and Saly from Attupurathu family at Palamkadavu, Thalayolaparambu. Linu is working as a nurse at Kottayam Government Medical College. Vijai and Linu have two children: Aphrem Joseph Vijai and Abhay Aliyas Vijai.

Ammini Joseph and Joseph.