Aurthohin is a Bangladeshi rock band formed in Dhaka in 1998 by Saidus Sumon (vocals and bass guitar), Tonmoy Rahman (lead guitar), Ponir (rhythm guitar) and Rumi Rahman (drums and percussion). They are considered to be one of the pioneering band in Bangladeshi alternative rock music. They have released 7 studio albums and also have appeared in some mixed albums. Though they were formed as a rock band they have experimented with genres like progressive metal and groove metal. Sumon's interests in slap bass also led the band's sound into funk-rock.