Kedarnath Bhattacharya (born 20 October 1957), professionally known as Kumar Sanu, is a leading Indian playback singer who primarily sings in Hindi film songs.

The couple has two daughters- Shannon K, a Bollywood playback singer[10] and their younger daughter, Annabelle Kumar Sanu, who is a songwriter and author.

[citation needed] He rose to fame in the 1990s and became one of the most prominent voices in Bollywood, lending his vocals to countless hit songs.

Sanu's romantic ballads and soulful renditions have made him a favorite among music lovers, earning him several awards and accolades throughout his career.

Some other achievements of the combo are Tahalka (1992), Phir Teri Kahani Yaad Aayee (1993), Phool Aur Angaar (1993), Sir (1993), Imtihan (1994), Khuddar (1994), Vijaypath (1994), Main Khiladi Tu Anari (1994), Naaraaz (1994), Naajayaz (1995), Gambler (1995), Akele Hum Akele Tum (1995), Krishna (1996), Diljale (1996), Khiladiyon Ka Khiladi (1996), Daraar (1996), Virasat (1997), Judwaa (1997), Mr. & Mrs. Khiladi (1997), Ishq (1997), Auzaar (1997), Soldier (1998), Hum Aapke Dil Mein Rehte Hain (1999), Jaanam Samjha Karo (1999), Biwi No.1 (1999), Ajnabee (2001), Ishq Vishq (2003) and No Entry (2005).

From then on he provided his voice for hit movies including Raju Ban Gaya Gentleman (1992), Kabhi Haan Kabhi Naa (1994), Dilwale Dulhania Le Jayenge (1995), Fareb (1996), Khamoshi (1996), Yes Boss (1997), Jab Pyaar Kisise Hota Hai (1998), Ghulam (1998), Pyaar To Hona Hi Tha (1998), Kuch Kuch Hota Hai (1998), Sarfarosh (1999) and Khoobsurat (1999).

All the title tracks were sung by Kumar Sanu, and then in his debut film as a music director, Pyaar Kiya To Darna Kya (1998) and further for many other films such as Bandhan (1998), Hello Brother (1999), Dulhan Hum Le Jayenge (2000), Kurukshetra (2000), Kahin Pyaar Na Ho Jaaye (2000), Jodi No.1 (2001), Humraaz (2002), Yeh Hai Jalwa (2002), Run (2004), Taarzan (2004), Vaada (2005).

Beginning with "Jab Koi Baat Bigad Jaye" in the movie Jurm (1990), Sanu's collaboration with Rajesh Roshan produced one hit after another.

Vishwatma (1992), Mohra (1994), Ravan Raaj (1995), Tere Mere Sapne (1996), Gupt (1997), Aar Ya Paar (1997), Bulandi (2000), Pyaar Ishq Aur Mohabbat (2001) and Kasam (2001) are some of their notable albums.

He worked with the duo and successfully delivered hits such as Trinetra (1991), Aaj Ka Goonda Raaj (1992), Jigar (1992), Bol Radha Bol (1992), Anari (1993), Platform (1993), Lootere (1993), Teesra Kaun (1994), Krantiveer (1994), Raja Babu (1994), Suhaag (1994), Gopi Kishan (1994), Eena Meena Deeka (1994), Coolie No.

Lata Mangeshkar, Asha Bhosle, Alka Yagnik, Kavita Krishnamurthy, Anuradha Paudwal, Sadhana Sargam, Sapna Mukherjee, Sudesh Bhonsle, Sonu Nigam, Shaan, Shreya Ghosal, Hema Sardesai, Sunidhi Chauhan and many more lent their voices for his music.

He sang the title song for the TV show Yeh Duniyan Gazab Ki, with singer Udit Narayan.

In 2017, he along with Sadhana Sargam sung for the title track of 19s Story based TV Series "Yeh Un Dinon Ki Baat Hain" and also appeared as a part for cameo in it.

He has also worked with a fellow producer, Rakesh Bhatia on Yeh Sunday Kyun Aata Hai, the film released in 2014, based on the lives of four children who live in the streets of Mumbai and polish shoes at a train station in order to earn their livelihoods, the film features Mithun Chakraborty in a leading role.

Kumar Sanu sang for a Bangladeshi Bengali film Hason Raja, which was directed by a UK-based filmmaker Ruhul Amin.

[21] Kumar Sanu had multiple hit duet numbers with singers Lata Mangeshkar, Asha Bhosle, K.S.Chithra, Anuradha Paudwal, Alka Yagnik, Kavita Krishnamurthy, Sadhana Sargam, Alisha Chinai, Sunidhi Chauhan, Sapna Mukherjee, Poornima, Sapna Awasthi, Hema Sardesai, Shreya Ghoshal, Akriti Kakkar, Monali Thakur, Neha Kakkar, Jaspinder Narula and others.

Kumar Sanu also had multiple duets with his daughter Shannon K, pop singer and songwriter, who has launched her career in the United States in 2017.

Kumar Sanu is also credited with the highest number of version songs and male duet hits with the finest singers of (1980) and (1990).

Sajid-Wajid gave him "Chhammak Chhallo Chhail Chhabili", a wedding song with Shreya Ghoshal for the film Rowdy Rathore (2012).