Nidhi Singh was born on 1986 in Allahbad, Uttar Pradesh, India. She studied from St. Mary's Convent Inter College in Allahabad. Her father Birendra Singh is an Indian Railway personnel and mother Rashmi Singh. Nidhi has an elder brother Rishabh Singh and a younger brother Shashwat Singh, who is a Hindi and Tamil singer. She was known for her character as Tanya Nagpal in Permanent Roommates, an Indian web series created by The Viral Fever and Biswapati Sarkar in (2014-16).