Censuring the Nattika MLA, the CPI district executive here said the action was taken as the "ostentatious" marriage had dented the image of the party.
"She (Gopi) has failed to understand that communist leaders should be role models for everyone and they are under the watchful eyes of the society," CPI district secretary K K Valsaraj said.
Photographs of the marriage, which took place recently at the temple town of Guruvayoor here, had gone viral showing the bride "decked" in gold ornaments.
Gopi is a two-time CPI MLA from Nattika in Thrissur district.
The party is the second largest partner in the CPI-M-led Left Democratic Front government in Kerala.