2006 marks Ghoshal's first collaboration with Ravindra Jain in film Vivah, where she performed three duets with Narayan titled "Mujhe Haq Hai", "Do Anjaane Ajnabi" and "Milan Abhi Aadha Adhura Hai". For the album, she also recorded "Hamari Shaadi Mein" with Babul Supriyo and two sisters conversation song "O Jiji" with Pamela Jain, along with a bhajan performed with Jain. Ghoshal's "obsessive" vocals were appraised in Roop Kumar Rathod's composition, "So Jaoon Main" from "Woh Lamhe". Despite the length, the version was particularly acclaimed from the album. During the year, Ghoshal performed her first ever duet with Sunidhi Chauhan—though they have contributed in multi-singer songs together—with the Salim–Sulaiman's composition, "Imaan Ka Asar" from "Dor". In spite of providing backing vocals for "Lage Raho Munna Bhai"s "Bande Mein Tha Dum", Ghoshal and Nigam performed a romantic duet titled "Pal Pal", a composition by Moitra. For the song, she received a Best Female Playback Singer nomination at the 52nd Filmfare Awards. She was next heard with Vishal Bhardwaj in the song "O Saathi Re", which exudes the feeling of intimacy and deep love. Ghoshal's low pitch rendition in the song was positively noted by critics.