K Murleedharan was named chairman of the state campaign committee.
Congress chief Rahul Gandhi has appointed Mullapally Ramachandran as the president of the party's Kerala unit.
Mr Gandhi also appointed three working presidents of the Kerala Pradesh Congress Committee -- K Sudhakaran, MI Shanawaz and K Suresh, a party statement said.
K Murleedharan was named chairman of the state campaign committee.