A 14-year-old boy was arrested Wednesday from near the West Bengal-Jharkhand border for "mischievously" posing as a terrorist and sending emails to media houses claiming responsibility for last week's Delhi blast, police said

The student was arrested at Pakur in Jharkhand by the Special Task Force (STF) of Kolkata Police on the charge of emailing media houses by posing as a member of the Indian Mujahideen and claiming that it was responsible for the blast.