The police on Monday busted an unlicensed firecracker manufacturing unit at Podanur and arrested three persons.
According to sources, the Podanur Police Station received a tip-off and a team led by Sub Inspector Gnanasekaran conducted a raid at a house in Podanur.
The police found Manickam, Manikandan, and Bhaskaran to be making the firecrackers without obtaining permission.
A total of 30 kg of gun powder and other related substances were seized, the police said.
The police have registered a case and invoked Section 286 (Negligent conduct with respect to combustible or explosive substance) of the Indian Penal Code.