The Disciplinary Action Committee of AICC headed by senior leader AK Antony has issued a show-cause notice to Nirupam in the wake of the controversy.
Committee sources said that Nirupam has been asked to respond within a few days over the articles in the magazine 'Congress Darshan'.
Ghulam Nabi Azad and Sushilkumar Shinde are members of the committee while Motilal Vora is its member-secretary.
Miffed with the editorial, the party had forced its editor and Nirupam to apologise for the gaffe. Sudhir Joshi, who looked after its editorial content, was sacked from the job.
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Nirupam had later said that he was unaware of the content that had been published in the said edition.
Washing its hands of the journal, Congress had earlier said that the party had appointed Nirupam as MRCC chief and not editor of any magazine.
Soon after the controversy broke, there had been murmurs questioning Nirupam's "intention". A former Shiv Sainik, Nirupam rose fast through Congress ranks after joining the party.