The treasury branch of SBI was attacked on Wednesday morning by a group of people, who barged into the manager's cabin, threatened him and the staff, damaged a glass table top and a computer monitor.
The strike was called by 10 central trade unions against the Centre's "anti-labour" policies.
A local court had on January 10 remanded to custody, two state government employees who had surrendered before the police.
"We have examined the CCTV visuals and identified sevenc more accused. We have gone to their respective government offices and confirmed their identities. All of them are on leave. They will be arrested soon," police said.
They said one of those identified, Suresh Babu, was a state committee member of the CPI(M) affiliated NGO union.
Ashokan, a senior accountant at the Treasury Directorate and Harilal, an attender at the Technical Education Directorate, are the two government employees in judicial custody.
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