Talking to reporters after a meeting of UDF leaders here, he said the Front would achieve a satisfactory victory in the polls to be held on November 2 and 5.
"UDF has full confidence," he added.
On the progress of seat sharing among Front partners, he said discussions would be completed within a week.
"Seat sharing talks are progressing satisfactorily," he added.
Warning that indiscipline would not be tolerated, he said unity was the main strength of UDF.
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The CM said all issues regarding polls would be settled by holding discussions at district level.
Meanwhile, Kerala Pradesh Congress Committee President V M Sudheeran attacked BJP's effort to rope in Sree Narayana Dharma Paripalana Yogam (SNDP) led by General Secretary Vellapally Natesan.
Addressing a State Mahila Congress meet here, he said BJP's move to form a third front in Kerala as alternative to Congress-led UDF and CPI-M headed LDF would not succeed. The unity of secular forces in the state was very strong, he said.