Senior Congress leader Anil Raja was on Sunday suspended from the party for his alleged anti-party activities.
"Raja has been suspended with immediate effect from the party due to his continuous anti-party activities," Assam Pradesh Congress Committee President Bhubaneswar Kalita said in a statement in Guwahati.
Raja was earlier removed from the post of party general secretary following directives from the AICC.
Kalita urged all partymen to remain united and disciplined to confront the political challenges being faced by the Congress.
Raja had lost the 2009 Lok Sabha polls on a party ticket from Nowgong.