Chauhan received her twelfth Filmfare nomination with "Chor Bazaari" of Love Aaj Kal (2009) preceded by "Dance Pe Chance" from Rab Ne Bana Di Jodi (2008).

[4] In 1995, Chauhan performed at the 40th Filmfare Awards with the group "Little Wonders", when late music director Aadesh Shrivastava heard her and recorded her voice for the film, Shastra.

[13] During the year, she won the first singing reality show on DD National titled Meri Awaz Suno, where she was honoured with the "Lata Mangeshkar Trophy" for the best female singer of India.

Kreem for Sur – The Melody of Life, where she performed "Aa Bhi Ja" and "Dil Mein Jaagi Dhadkan Aise"; which she considered "hummable" and different from her "usual style".

[38] One of the dance numbers released during the year was "Aisa Jadoo" from Khakee composed by Ram Sampath, followed by "Ishq Kabhi Kario Na" and "Saaki" from Musafir.

[39][40] Reportedly, Sampath asked Chauhan to stand two feet away from the mike while recording the song "Aisa Jadoo", as the "equipment couldn't handle her pumped-up voice throw.

"[41] In her review of Musafir, Verma wrote: "Chauhan's husky vocals do complete justice to "Ishq Kabhi Kario Na" by adding just the right amount of sauciness and oomph.

"[42] 2005, marked the first collaboration of Chauhan with composer Shantanu Moitra where she recorded "Aao Nee Kudiyon" for 7½ Phere and the seductive track "Kaisi Paheli Zindagani" for Parineeta.

[44] Apart from recording the Rajasthani folk influenced "Phir Raat Kati" in Paheli, alongside Sukhwinder Singh, she was heard in a slow pace club number "Jadoo" from Padmashree Laloo Prasad Yadav.

[68] In 2007, Chauhan lent her voice for Madhuri Dixit in her comeback film Aaja Nachle, where she rendered "Soniye Mil Ja" along with Sukhwinder Singh and "Koi Patthar Se Naa Maare" alongside Nigam and Ghoshal, apart from the title track.

[70][71] In a review from Rediff.com, Raja Sen wrote; "The two-sister song works, from moustache-and-cow similes to paan spits to a fantastic 3–2–1–2–7–2 count, the female vocalists doing the upbeat words justice".

[72] However, he found "Kachchi Kaliyaan" from the same film less appealing with its "bad remix background" though praised Chauhan, Ghoshal, KK and Nigam for giving the song the "required vim".

[73][74] Chauhan received her eleventh Filmfare nomination for Best Playback Singer Award with Salim–Sulaiman's composition, "Dance Pe Chance" from Rab Ne Bana Di Jodi (2008).

[85] Despite the positive response received for songs like "Chor Bazaari" from Love Aaj Kal, Chauhan was criticised for her pronunciation in the title track of Kambakkht Ishq, composed by Anu Malik.

[95] Apart from recording the title track and "Sanu Guzra Zamana" for Reshammiya's Kajraare, Chauhan was heard in Pritam's cabaret number "Parda" from Once Upon a Time in Mumbaai which has influences of "Piya Tu" and "Duniya Mein" while brought in an improvised "true retro feel".

[107] Besides, she recorded the Sufi inflected love ballad "Ishq Sufiyana" and the disco nightclub song "Honeymoon Ki Raat", for Vishal-Shekhar's The Dirty Picture.

[108] Complimenting her vocal range and flexibility, Verma wrote: "To Sunidhi's credit, she imbues her brand of spice and spunk to Rajat Arora's [...] lines without making it in-your-face".

[112] The duo also worked with another Marathi styled song "Navrai Majhi" for Sridevi's comeback film, English Vinglish, followed by the energetic "Chokra Jawaan" from Ishaqzaade.

[128][129] Another track composed by Pritam and performed along with Arijit Singh was met with mixed response with the music critics, where Mohar Basu from Koimoi thought Chauhan's "unsurpassable energy" fails in the song along with other factors.

[139] Apart from rendering "Qawali and rock fused" title track of Daawat-e-Ishq along with Javed Ali, she collaborated with Vishal-Shekhar again for Happy New Year's "Dance Like a Chammiya".

[153] Complimenting her "restrained vocals" in the album, Swetha Ramakrishnan reviewing from Firstpost wrote: "Tere Liye is a loud cry to music directors to use Chauhan in such songs, because she sounds absolutely fantastic when she holds back a tad bit".

[154] She continued to gain critical praise as she sang with "easy switches from desolation to angst around the title refrain" for the song "Just Go To Hell Dil" from Dear Zindagi.

[156][157] Apart from recording the track "Lamhon Ke Rasgulle" for Clinton Cerejo-composed Kahaani 2: Durga Rani Singh, she sang "Titliyan" from Rocky Handsome in 1950s cabaret style.

Her rendition for both the tracks met with positive response from critics; Redkar from Koimoi noted, "Chauhan brings life into this song with her vocals as she croons it with the required nakhra".

[163] Ashwin Vinayan of Deccan Herald picked "Tippa"—performed with Sukhwinder Singh and Rekha Bhardwaj—as "one of the classiest multi-star efforts in recent Bollywood music memory".

[166] She contributed to the album of Jab Harry Met Sejal by performing "Radha" with Shahid Mallya and "Butterfly" alongside Aman Trikha, Nooran Sisters and Dev Negi.

[195][196] She grew up listening to music by Mangeshkar and Asha Bhosle and is equally influenced by singers like Kavita Krishnamurthy, Sadhana Sargam, K.S.Chithra, Alka Yagnik, Kishori Amonkar, Kishore Kumar and Manna Dey.

[213][214][215][216] In 2013, Chauhan appeared in the list of "World's Sexiest Asian Woman" by FHM India at the twenty-eighth position,[217] and was named the "Hottest Female Bollywood Lead Singer" by MensXP.com.

[272] Besides, she performed in a musical show along with singers such as Suresh Wadkar and KK which helped to raise ₹15 million (US$170,000) through sponsorships and donations in order to open a home for senior citizens from all castes and communities.

After dating for more than two years, they married on 24 April 2012, at a low profile wedding ceremony in Goa and had a grand reception in Mumbai, attended by many prominent Bollywood celebrities.