Saranya entered into the film industry as a child artist in Aniyathi Pravu directed by Fazil and its Tamil remake, Kadhalukku Mariyadhai in 1997. Next she made appearance as a child artist in the hit Malayalam movie Harikrishnans with Mohanlal , Mammootty & Juhi Chawla in lead roles. Then she also was seen as a child artist in yet another Malayalam movie Rakthasakshikal Sindabad. Then she took a break, concentrating on her studies, before enacting a supporting role in another Fazil directorial, Oru Naal Oru Kanavu (2005), in which she acted as a sister to the male lead character. Her subsequent release, Yaaradi Nee Mohini brought her into limelight. She subsequently appeared in 3 more Tamil films in 2008, which, however, were less successful. These included Jayamkondaan, next was Mahesh, Saranya Matrum Palar & finally Panchamirtham. In year 2009, she had six releases, four of which being Tamil projects. Out of her Tamil releases, the tragedy sports film, Vennila Kabadi Kuzhu, directed by debutante Suseenthiran, and the supernatural thriller Eeram proved to be commercially as well as critically successful. The other two Tamil movies were A Aa E Ee with Prabhu Sir & another Tamil movie was Arumugham with Bharath & Priyamani in lead roles. Later that year, she made her Telugu debut with Village Lo Vinayakudu and made her comeback to Malayalam films, starring in Chemistry. She also did the Telugu remake of her Tamil movie named Bheemili Kabaddi Jattu in 2010 which also did well in the boxoffice. Then she did one more Telugu movie "Happy Happy Ga" the same year. Start of the year 2011 she did a Malayalam movie Ponnu Kondoru Aalroopam. Next was yet another Malayalam movie Nadakame Ulakam. She also enacted in Velayutham, Osthe. . Then she had an entry to Kannada same year with her debut Kannada movie Ee Bhoomi Aa Bhanu. She continued her career with a Tamil movie Kadhalai Thavira Veru Ondrum Illai. Then the same year she made her Bolywood debut with Badlapur Boys. Saranya married her longtime boyfriend Aravind Krishnan on 6 September 2015 at Kottamkulangara Devi Temple, Alappuzha. Her upcoming movies are Kadhalai Thavira Veru Ondrum Illai, Jayam Manadi and Mudra.