The red sanders, weighing nine tonnes, were seized by the Directorate of Revenue Intelligence from a container at Dharapuram and handed over to ICD for safe custody, police said.
A seven-member gang allegedly entered the depot late on Thursday night, attacked and tied two security guards on duty and locked them in a room before taking away the sanders in a lorry.
The guards on morning duty next day found their colleagues tied up and immediately informed the godown supervisor who lodged a complaint with Singanallur police who registered the case yesterday.
