Isri is a census town in the Dumri CD block in Dumri sub-division of Giridih district in the Indian state of Jharkhand. Isri Bazar is the main market of the block and is situated on NH 19 / Grand Trunk Road. The railway station is called Parasnath on the Grand Chord. Parasnath Hill is well known for Jain temples. Parasnath is a major destination for Jain pilgrims.