The move to call the meeting after bypassing the chief minister has raised speculations in party circles about the fate of Singh.
The All India Congress Committee had last month published the list of 14 DCC chiefs in the state, following which the disgruntled leaders had made the remarks on TV talk shows.
The marathon discussions the state leaders had with the All-India Congress Committee (AICC) lasted till Thursday midnight.
The party is yet to schedule a meeting of the Congress Working Committee (CWC) to fix a date for electing the president.
Currently, all four appointed to the posts of president and working president by the AICC are elected representatives.
The COVID-19 situation prevented the party from highlighting the Left’s five years of misrule, and it led to the backlash at the polls, KPCC President K Sudhakaran said.
Rahul Gandhi had instructed to do away with the trend of appointing KPCC presiding based on the recommendations by group leaders.
Tariq Anwar, AICC general secretary in charge of Kerala, has been consulting Congress MPs and MLAs and other senior leaders about the appointment of a new KPCC president.
AICC observers M Mallikarjun Kharge and V Vaithilingam held talks with Congress MLA designates in Thiruvananthapuram.
The observers, former Leader of the Opposition in the Lok Sabha M Mallikarjun Kharge and former Chief Minister of Puducherry V Vaithilingam, are expected in Kerala after the lockdown.