Nandhini completed her schooling at Bethel Higher Secondary School. She scored 469 out of 500 in her 10th exam, and 878 out of 1200 in Class 12. Her father works as a painter but does not support his family. Her mother works as a cook and is the breadwinner of the family. Nandhini is working in Tata Consultancy Services as junior accounts processor after completing her B.Sc Mathematics from Chevalier T Thomas Elizabeth college for women. She has a younger sister studying in middle school.