Karimganj (Assam) [India], March 7 (ANI): Two persons were arrested with 297 grams of heroin, packed in 27 soap cases and concealed under the bonnet of a car on Sunday at Ashimganj area under Patharkandi police station in Assam's Karimganj district, informed the Officer-in-Charge of Patharkandi police station, Samarjit Basumutary.