Noted for her wide vocal range and versatility, she is one of the most popular singers in South India .She rose to fame for her critically acclaimed song "Oru Deivam Thantha Poovae" from Kannathil Muthamittal (2002), directed by Mani Ratnam and composed by A. R. Rahman.

She learned German as a language in the Max Mueller Bhavan in Chennai and completed certification courses from NIIT and SSI in web design.

Chinmayi is a polyglot; apart from her mother tongue Tamil she speaks [Telugu language], English, Hindi, German, French, and Marathi fluently, and has a working knowledge of Spanish, Malayalam, Kannada and Punjabi.

Chinmayi's playback singing career began with her performance of Rahman's "Oru Dheivam Thanta Poove" for the film Kannathil Muthamittal.

After a couple of years of singing exclusively for Tamil, Telugu, Tulu and Malayalam films, she made her Bollywood debut in Mangal Pandey: The Rising with the song "Holi Re".

[5] She also collaborated with Shekar Ravjiani to launch a single in Tamil/Telugu the name of the album being Sitakokachiluka (Butterfly), again for which the legal downloads of it will go to Ma Niketan, a home that takes care of abandoned or uncared-for girl children in Thane, a charity that composer Shekhar has been supporting.

Chinmayi, since April 2020 till the world returned to normalcy, has been able to raise money and essentials worth ₹1 crore to the needy through this initiative, by recording and sharing over 3,000 songs.

Chinmayi turned a voice actor for the Tamil film Sillunu Oru Kadhal (2006), speaking dubbing for actress Bhumika Chawla, an opportunity that came through A. R. Rahman's office.

Since then, she has dubbed for several lead actresses in Tamil films, including Tamannaah Bhatia, Sameera Reddy, Samantha Ruth Prabhu and Trisha Krishnan.

Chinmayi has dubbed for Samantha Ruth Prabhu in many films like Rabhasa, Atharintiki Daaredi, Ramayya Vasthavayya, Seethamma Vakitlo Sirimalle Chettu, 24, Oh!

She later began compering Star Plus's Chhote Ustaad, which ran concurrently with another music talent show she started hosting in June, the debut season of Sun TV's Sangeetha Mahayuddham.

She also hosted the event organized to facilitate music composer M. S. Viswanathan with the Thirai Isai Chakravarthy award by Jayalalithaa, titled "Ninaithale Inikkum".

[8] Through her Twitter account, Chinmayi has been at the forefront of highlighting claims of sexual harassment in the Indian music industry, in what is widely considered as India's Me Too movement.

She accused Vairamuthu of sexual harassment[9] and highlighted claims made by others against OS Thyagarajan, Raghu Dixit, Karthik and several other carnatic singers.

Further, Chinmayi tweeted allegations made by a woman against the Tamil Nadu Brahmins Association (TAMBRAS) president N Narayanan as part of her efforts.

Chinmayi held multiple group discussions to help all those who were impacted by Metoo She has been selected as a Mentee to the Fortune/US State Department Global Women's Mentoring Partnership.

She then opened a medi-spa "Deep Skin Dialogues" in November 2021, which was inaugurated by actor Samantha Ruth Prabhu at Chetpet, Chennai.