Prime Minister and Awami League President Sheikh Hasina took the decision, said a party press release on Sunday.
Khokon, son of late mayor of undivided Dhaka City Corporation Mohammad Hanif, is not there in the city corporation election race as he failed to get the nomination of the ruling party to contest it.
The elections to DSCC and Dhaka North City Corporation (DNCC) are scheduled to be held on January 30.
On December 26 last, Awami League announced its Central Working Committee five days after its council.
Sheikh Hasina was elected President of Awami League - the country's oldest political party - for the 9th consecutive term, while Obaidul Qader reelected as general secretary for the second time in its 21st National Council held on December 20-21.