Kerala Local Administration Minister K T Jaleel, facing charges of nepotism, was shown black flags by IUML activists here Thursday over the issue, police said.
They were removed by the police later.
The Muslim Youth League had on November 2 alleged Adeeb K T, a cousin of Jaleel, was appointed general manager in Kerala State Minorities Development Finance Corporation, flouting rules, a charge denied by the minister.
Senior Congress leaders, including Oommen Chandy and Mullappally Ramachandran, have demanded the minister's resignation.
However, Jaleel Thursday reiterated that all the allegations against him were baseless.
He said the Muslim League was after him since 2006 when he won the assembly seat from Kuttipuram constituency.
The Minister also said that he was never asked to provide any explanation by the LDF.
In October 2016, just five months after coming to power, then Industries minister E P Jayarajan had to resign on a similar charge.
However, Jayarajan was reinstated as a minister in August this year after the vigilance and anti-corruption bureau, which probed the case, absolved him of the charges.
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