The Bharatiya Janata Party (BJP) office here received a bomb threat from an unknown person on Friday.
The BJP office reported to the the local Police that they received a parcel containing gunpowder and other explosive related materials along with a threat note.
An investigation has been launched to ascertain the source and sender of the parcel.
On June 7, few unidentified assailants hurled a petrol bomb at the Trivandrum district committee office of BJP.