Ganga was born on 16th Dec. at Kozhikode, Kerala. Her Parents were Professors. As a child she was not exposed to music much but was learning Carnatic Music like anyother child. She got interested in singing with the encouragement of her guru Sri Haripad K.P.N. Pillai and also Mrs. Lakshmi her Music Teacher in School. She has won lots of prizes in inter School Competitions for Carnatic and Light Music. During her College days it was her friends who inspired her to try her luck in movies.
In june 1992 she went to Chennai with her father. It was Mr. Maragathamani (M.M. Keeravani) who gave her the first Voice Recording. It was for a dubbing movie (Aanenna Pennenna) form Telugu to Tamil. Later she joined Mr. A.R. Rahman’s group singing harmony and Track Voices. In the year 1993 she completed her graduation in B.A. English Literature. She has got a Diploma in Carnatic Music, Sangeetha Ratna, from Music Academy in 1995.