Chinmayi was born on 10th September 1984 in Mumbai in Maharashtra. Her native is Paramakudi and her mother T. Padmasani is a musicologist and her guru. She studied at Children’s Garden at Chennai and at The Hindu Senior Secondary School at Indira Nagar. She obtained her bachelor’s degree in psychology from the University of Madras and did her master’s degree in guidance and counseling psychology from the same university. She has passed all the 6 levels of German from Max Mueller Bhavan. Though she learnt both Hindustani and Carnatic music she is much interested in Hindustani music. At her age of 11 she received CCRT Scholarship for Young Talent for Carnatic Music from the Government of India. From All India Radio, she received gold medal for Ghazals in 2000 and silver medal for Hindustani Classical Music in 2002.
She entered into film industry through the Tamil film by A.R. Rahman, Kannathil Muthamittal. She presented the first season of the Super Singer in Star Vijay TV and the first season of Airtel Super Singer Junior and the second season of Super Singer 2008. She is also an active blogger. She has also sung for various jingles like The Chennai Silks, Kalyan Jewellers, Jayalakshmi Silks, Prince Jewelry Ad, Nalli Silk Ad, Pepsi Ad, Spinz Talc Ad, etc. On 16 September 2013 through a social networking site (Twitter) Chinmayi's mother Padmhasini revealed her future son-in-law to be Rahul Ravindran who is also a South Indian actor. Chinmayi and Rahul were friends, colleagues and in due course started dating each other by end of June 2013, 2 months to be precise. The marriage took place on 5 May 2014.