The violent anti-Sterlite protests in Tuticorin once again echoed in the state Assembly on Thursday, with Opposition DMK staging a walkout after being denied permission to raise some issue related to it.

The government asked the main Opposition party to approach the one-man inquiry commission headed by retired Madras high court Judge Aruna Jagadeesan, probing the violence and police firing during protests against the Sterlite unit in the southern district that claimed 13 lives.