Sewan was also involved in Melancholy, an environmental song by 365 artists, written, composed and directed by environmentalist Nipesh Dhaka in which the song has been featured in Guinness World Records entitled "Most Vocal Solos in a Song Recording" , recorded on 19 May 2016 at Radio Nepal studio.
[4][circular reference] Sewan auditioned for season 1 of Nepali Tara by singing "Aba Chotharule Piroldaina Malai" from the movie 'Allare'.
His famous songs are Yo Andheri Raat, Herda Ramro Machhapuchhre, Ranga Ranga, Joripari, Dherai Nai, Pahadama Hurkeki, Ek Mitho Muskaan, Timro Tyo Rupley, Ful Samjhi and many more.
He has won numerous awards from his time of singing and has been an inspiration for most of the youth singers of Nepal.
He did a cover of his father's song 'Herda Ramro Machhapuchre' which won HITS FM MUSIC AWARD in the category of Best Vocal Performance Pop Male in 2014.