In 2018, she was honoured by Mr. Craig Coughlin, Speaker of the General Assembly, New Jersey, United States of America. In 2019, she was honoured by Sultan bin Muhammad Al-Qasimi, sovereign ruler of the Emirate of Sharjah and is a member of the Federal Supreme Council of the United Arab Emirates, UAE for successfully completing 40 years in Indian Film Industry. She is the only South Indian female singer who has presented her maiden concert at the world’s prestigious concert hall Royal Albert Hall in London in 2001. Her song “Kannalane/Kehna Hi Kya” from the film Bombay (1995) was included in The Guardian’s “1000 Songs Everyone Must Hear Before You Die” list.

In 2018, she was honoured by Mr. Craig Coughlin, Speaker of the General Assembly, New Jersey, United States of America. In 2019, she was honoured by Sultan bin Muhammad Al-Qasimi, sovereign ruler of the Emirate of Sharjah and is a member of the Federal Supreme Council of the United Arab Emirates, UAE for successfully completing 40 years in Indian Film Industry. She is the only South Indian female singer who has presented her maiden concert at the world’s prestigious concert hall Royal Albert Hall in London in 2001. Her song “Kannalane/Kehna Hi Kya” from the film Bombay (1995) was included in The Guardian’s “1000 Songs Everyone Must Hear Before You Die” list.

In 2014, Chithra recorded a song at a Singapore studio for A. R. Rahman’s private album Raunaq written by Kapil Sibal.

Chithra, along with a Kerala-based satellite channel, Asianet Cable Vision (ACV), jointly launched a fundraising organisation, Sneha Nandana, to raise funds for the welfare of retired musicians who have lost their careers due to changes in the music industry. She launched this organisation on the occasion of her completion of three decades in the music playback industry. She said that the fund would provide help to the musicians with financial impediments and those suffering from health problems. A cultural event called Chithra Pournami was held on 15 February 2011 at Thiruvananthapuram to celebrate the 30th year of her career and also to launch this organisation. Attendees included K. J. Yesudas, V. Dakshinamurthy, Sreekumaran Thampi, P. Susheela, Hariharan, P. Jayachandran, Usha Uthup, M.K. Arjunan, Johnson, Shyam, M. Jayachandran, M. G. Sreekumar, Sharath, Sujatha Mohan, Unni Menon, Srinivas, G. Venugopal, Minmini, and Priyadarshan.

Chithra is married to Vijayashankar, an engineer and businessman and settled in Chennai. They had a daughter Nandana, who was born with down’s syndrome. Her daughter died in a pool accident due to drowning in Dubai in 2011 when Chithra was about to perform at an A. R. Rahman’s concert.

Chithra is a recipient of six National Film Awards (most by any female singer in India), eight Filmfare Awards South and 36 different state film awards. She has won all the four south Indian state film awards. She was honored with India’s civilian honor Padma Shri in 2005. She is the first Indian woman who was honored by House of Commons, British Parliament, United Kingdom in 1997. She is the only singer from India who was honored by the Government of China at the Qinghai International Music and Water Festival in 2009. She is conferred with highest honour of Rotary International FOR THE SAKE OF HONOUR AWARD in 2001. she is the only singer from South India who has received the MTV Video Music Award – International Viewer’s Choice at Metropolitan Opera House, New York, United States in 2001.

Chithra is a recipient of six National Film Awards (most by any female singer in India), eight Filmfare Awards South and 36 different state film awards. She has won all the four south Indian state film awards. She was honored with India’s civilian honor Padma Shri in 2005. She is the first Indian woman who was honored by House of Commons, British Parliament, United Kingdom in 1997. She is the only singer from India who was honored by the Government of China at the Qinghai International Music and Water Festival in 2009. She is conferred with highest honour of Rotary International FOR THE SAKE OF HONOUR AWARD in 2001. she is the only singer from South India who has received the MTV Video Music Award – International Viewer’s Choice at Metropolitan Opera House, New York, United States in 2001.

Krishna Digidesign is a digital recording studio promoted by K S Chithra in Chennai. The studio is a dream come true project for Chithra.The studio was inaugurated on 6 April 2000 jointly by two of Chithra’s mentors K J Yesudas and mastero Ilayaraja in the august presence of her guru Omanakutty and M. G. Radhakrishnan who had introduced her to the field of film music.

In 1995 Chithra established the Audiotracs Music Company in Chennai. AUDIOTRACS is the brand name of AT MUSICS a music label promoted by the well known singer CHITHRA known as the nightingale of the south in 1995. Audiotracs is one of the most respected music label of south India producing albums in the non film space such as devotional music, classical music, light songs, traditional music etc. Some of the most prominent music directors of Malayalam films like M.Jayachandran, Deepak Dev, Viswajith etc. made their debut thro this label. All of Chitra’s non film albums are produced by AUDIOTRACS and released thro MANORAMA MUSIC the music division of the media group Malayala Manorama thro a licensing arrangement since 2001. Apart from music cds the audiotracs catalogue is available in the digital space like YouTube, iTunes, Google+, Nokia music store etc.

Chithra recorded her first studio album with Voodoo Rapper for the album called Ragga Raaga in 1993. She recorded the albums in Hindi, Piya Basanti (2000) and Sunset Point. She associated with Ustad Sultan Khan for Piya Basanti which was certified Gold. Sunset Point had eight songs written and narrated by Gulzar and sung by Chithra and Bhupinder. In 2006, she released an album in dedication to M. S. Subbulakshmi named My Tribute. It is a collection of Kritis and bhajans dedicated to Subbulakshmi. In 2009 she released Nightingale: A Salute to Lataji, a musical tribute to Lata Mangeshkar on her 80th birthday. She also recorded many Malayalam albums for K. J. Yesudas, M. Jayachandran and Sharreth compositions. She also planned a ghazal album with Ghulam Ali and Asha Bhosle.

Chithra has sung more than 25,000 songs in number of Indian languages. But predominately she works in South Indian film industry. Chithra has the fame of working with huge number of music directors across India. She has recorded maximum number of songs to the music directors like A. R. Rahman, Ilayaraja, M. M. Keeravani, Koti, S. V. Krishna Reddy, Hamsalekha, Raveendran, Johnson, Sharreth, S. A. Rajkumar, Manisharma, Vidyasagar, Deva, Devi Sri Prasad, Anu Malik, Mickey J Meyer in Tamil, Telugu, Malayalam and Kannada. She has recorded huge number of duets with singers like S. P. Balasubrahmanyam, K. J. Yesudas, M. G. Sreekumar, Mano, Hariharan, Udit Narayan, Kumar Sanu, Rajesh Krishnan, Karthik, P. Unnikrishnan, Shankar Mahadevan, Vijay Yesudas in all Indian languages. Chithra, Mano, S.P.Balasubrahmanyam have a special fame of recording all the songs in one film dominatly from 1990-1997 mostly in Telugu, Kannada and few Tamil films. She has even recorded hit female duets with P. Susheela, Vani Jairam, S. Janaki, S. P. Sailaja, Sujatha Mohan, Shreya Ghoshal, Shweta Mohan, Swarnalatha, Minmini, Sadhana Sargam, Kavita Krishnamurthy, Anuradha Paudwal , Alisha Chinai ,Harini, Sunidhi Chauhan, Alka Yagnik, Madhushree, Sunitha Upadrashta in Tamil, Telugu, Malayalam & Hindi. The most successful duet combination was S.P.B-Chithra duo in Telugu and Kannada especially. They have sung maximum number of songs to so many music directors together. They have a fame of recording 2,500 songs to composers Raj-Koti where in total Raj-Koti composed 3,000 songs. Chithra sang some rare duets with the legendary actor and singer Dr.Rajkumar in Kannada. She has been singing since more than 3 decades and yet gets chances to work with latest film music directors like Santhosh Narayanan, S. S. Thaman, Devi Sri Prasad, Mickey J Meyer, Sai Karthik, Ghibran.

Chithra started her journey in Kannada cinema through the film Preethi released in 1986. The duet song “Nee Hacchida Ee Kumkuma” along with S. P. Balasubrahmanyam was composed by G. K. Venkatesh. In the same year, composer M. Ranga Rao offered her two songs in the film Aruna Raaga. This was followed by “Sheela O My Sheela”, a duet song with K. J. Yesudas and composed by Bappi Lahiri for the Dwarakish directorial fantasy-adventure film Africadalli Sheela. Throughout the 1990s, she went on to become a notable singer in Kannada film industry with her perfection in diction and finesse. Her solos and duets with S. P. Balasubrahmanyam made her famous and she received great acclaim for portraying great deal of nativity in her singing. For the 1986 Kannada film Sathkaara, composer Satyam called upon her to sing a duet song along with K. J. Yesudas and since then, Chithra has recorded around 2000 songs in Kannada film industry. Her most frequent collaborations in Kannada has been with Hamsalekha, V. Manohar and her duet songs have been largely with S. P. Balasubrahmanyam and Rajesh Krishnan. She is fondly referred to as Gaana Kogile and Kannada Kogile in Kannada cinema industry.

Chithra made her debut in the Tamil film industry through the song “Poojaikketha Poovithu” from the film Neethana Antha Kuyil (1985), which was composed by Ilaiyaraaja. She was given the title Chinnakuyil after singing the song “Chinna Kuyil Paadum” from the 1985 released film Poove Poochudava. Director Fazil cast her for this song after Ilaiyaraaja got impressed with her song sung in original version in Malayalam for the film Nokkethadhoorathu Kannum Nattu in 1985 directed by himself.. For the folksy classical song “Paadariyaen Padippariyaen” from the film Sindhu Bhairavi (1986), she was awarded with the National Film Award for Best Female Playback Singer. Since then, she has recorded thousands of Tamil film songs composed by Ilaiyaraaja, A. R. Rahman, Deva, S. A. Rajkumar, Vidyasagar, Sirpy, Yuvan Shankar Raja, G. V. Prakash Kumar, Harris Jayaraj and Santhosh Narayanan. She has sung huge number of evergreen hit songs in Tamil which are remembered till date. She is the only female singer who has sung the maximum number of songs for the Academy Award winning composer A. R. Rahman for his Tamil film songs.. Her fifth National award for best singer was for the song “Oooh La La” from the film Minsara Kanavu (1997).

Chithra was introduced to Malayalam playback by M. G. Radhakrishnan in 1979 who recorded her voice for films and private albums. Attahasam, Snehapoorvam Meera and Njan Ekananu were the first few films in which she recorded her voice. She also performed live concerts with K. J. Yesudas in India and abroad. The song “Manjal Prasadavum” from the film Nakhakshathangal (1986) composed by Bombay Ravi got her the second National Film Award for Best Female Playback Singer. For the same composer, she sang the song “Indupushpam Choodi Nilkum” for the film Vaishali (1989) and won her third National Film Award. Her first Kerala State Film Award for Best Singer was for the song “Aayiram Kannumayi” from the film Nokkethadhoorathu Kannum Nattu (1986) composed by Jerry Amaldev. Since then, she has earned wide recognition by singing popular songs under the compositions of Raveendran, Shyam, S. P. Venkitesh, Mohan Sithara, Kannur Rajan, Ilaiyaraaja, Johnson, Ouseppachan, M. K. Arjunan, A. T. Ummer, Berny Ignatius, M. B. Sreenivasan, Mohan Sithara, Vidyasagar, Ramesh Narayan, Sharreth and M. Jayachandran. She is regarded as “Nightingale of Kerala (Vanambadi)” and recorded many successful songs in Malayalam. She recorded a number of songs for the composer S. P. Venkitesh and her maximum duet songs in Malayalam are with K. J. Yesudas and M. G. Sreekumar. As of 2017, she has won the Kerala State Awards for the record 16 times.

Born in Thiruvananthapuram, Kerala, into a family of musicians, Chithra’s father, Krishnan Nair, was also her first guru (teacher). Her elder sister K. S. Beena and her younger brother K. Mahesh are also playback singers. Chithra received her training in Carnatic music from Dr. K. Omanakutty, passed B.A. in music with first class and third rank from the University of Kerala, and completed a master’s degree in music. She was selected to the National Talent Search Scholarship from the Central Government from 1978 to 1984.