Vaishnav rose to fame when his audition for the 2017 season of Zee TV's musical talent hunt show Sa Re Ga Ma Pa L'il Champs became a viral video online, and led to a nationwide press coverage.
He is the youngest son of A.K Girish Kumar, a retired officer at Canara Bank and Mini V Menon, a lawyer in the High Court of Kerala.
He also secured grade A for Light Music, Ghazal and Urdu group song events at 58th Kerala School Kalolsavam held in 2017.
[7] After Vaishnav's audition for the sixth season of Sa Re Ga Ma Pa Li'l Champs, singing "Bin Tere" (from the Hindi film, I Hate Luv Storys), went viral online in July 2017, he was featured in Indian Express,[1] Times of India,[3] Mathrubhumi[2] among others, bringing him wider fame in India.
[citation needed] In 2018, Vaishnav made his debut as a playback singer with the Malayalam film, "Ankarajyathe Jimmanmar", composed by Girish Nayanan.