Trishira or Trisiras (Sanskrit: त्रिसिर)ไทย : ตรีเศียร, one having three heads) was a three-headed asura in Ramayana.
Story
Trishira was one of the seven sons of Ravana, and his other brothers were Indrajit, Prahasta, Atikaya, Akshayakumara, Devantaka and Narantaka.
Trishira engaged Rama in a fight and hit him with a number of arrows. At this Rama told that the arrows were nothing but like flowers being showered on his body. Thereafter, a duel ensued, in which Rama killed Trishira.