Arnob started his music journey since 2005. His father is a great musician and also a great Esraj player. He learned his music lessons from his father. Arnob also completed his graduation on [[Piano]] from International Music School and College. 2014 his 1st album [[Gontobbo]] got released.<ref>{{cite news |script-title=অর্নবের ‘গন্তব্য’ |trans-title=Arnob Mitra's Gontobbo |url=http://janatarnews24.com/details.php?sid=15&id=32465 |newspaper=janatarnews24 |language=bn }}</ref> His 2nd album [[Ajana Pothe]] got released at 2015.<ref>{{cite news |script-title=অর্নব মিত্রের অ্যালবাম “অজানা পথে” |trans-title=Arnob Mitra's album "Ajana Pothe" |url=http://janatarnews24.com/details.php?sid=15&id=51213 }}</ref> He also worked in Rabindranath Tagore's mixed album with his father.<ref>{{cite news |script-title=রবি বাবুর গান |trans-title=Robi Babur Gaan |url=http://bangla.thereport24.com/article/130904/ |newspaper=thereport24 |language=bn }}</ref> On 2016 his 1st folk fusion mixed album [[Folk Studio]] got released. On 2017 his 3rd solo album [[Nokkhotro]] got released from Eagle Music.<ref>{{Eagle Music |script-title=অর্নব মিত্রের অ্যালবাম “নক্ষত্র” |trans-title=Arnob Mitra's album "Nokkhotro" |url=http://eaglemusicbd.com/album/260/Nokkhotro.html }}</ref> On 2018 his two new songs got released.