Acting on a tip-off, Shantanu and Nakul --both B.Tech students of Hindustan University, Chennai and three others were arrested from Khamaria tri-section of the district, they said.
The police recovered 600 gm heroine, worth Rs 1.25 crore in the international market, from their possession.
Meanwhile, efforts are on to elicit more information from the arrested persons about their gang, they added.
