Acting on a tip-off that red sanders were concealed in containers and were in the process of being shipped from Chennai Port Trust to Port Klang, Malaysia, DRI officials seized the logs.
The goods had been declared as garments and floor mats.
The officials also seized three more containers and found red sanders instead of the declared cargo, a press release said.
Further investigation is on to apprehend those behind the attempts to smuggle the red sanders.
In the last three years, the DRI Chennai zone had seized 176 metric tonnes of red sanders logs with value of more than Rs 71 crore, it added.