John Brittas accused Sushmita Dev of repeatedly calling him "lungi wala" during Rajya Sabha proceedings and described the remark as derogatory.
Brittas has sought a reference to the Committee of Privileges, saying the remark stereotypes South Indians and undermines the dignity of Parliament.
Rajya Sabha Chairman C P Radhakrishnan advised members to avoid disrespecting cultural traditions and regional identities following the controversy.
