Kaushik hails from Delhi. She is the daughter of Dinesh Chandra Kaushik, a former CRPF officer. She graduated in Philosophy from Indraprastha College for Women, Delhi. Kaushik had started modeling, hosting events and anchoring during her college days. In 2001 she appeared in auditions in the New Delhi for Kutumb and moved to Mumbai. After her work in the soap opera, Kutumb, Kaushik was seen in Kahaani Ghar Ghar Kii, portraying the role of Manya Doshi. She then portrayed the character of Naina, in the afternoon daily Kumkum. In another popular TV series, Remix, she played Pallavi. She also appeared in a brief role in the serial Tumhari Disha, and C.I.D. as Sub Inspector Anushka.