UDF won elections a week ago, but Kerala CM name is still not out. Why Congress is yet to decide

Assembly elections were held in Kerala, West Bengal, Assam, Tamil Nadu, and Puducherry. West Bengal, Puducherry, and Tamil Nadu have got their chief ministers, while Himanta Biswa Sarma is set to be Assam's chief minister. The Congress party in Kerala has not finalised its chief ministerial choice.