Ahead of the 2014 general election, the Election Commission renumbered the seat for Chittagong-16 (Sandwip) to Chittagong-3, bumping up by one the suffix of the former constituency of that name and higher numbered constituencies in the district. Thus Chittagong-6 covers the area previously covered by Chittagong-5. Previously Chittagong-6 encompassed Rangunia Upazila and one union parishad of Boalkhali Upazila: Sreepur Kharandwip.[5][2][6]
A.B.M. Fazle Karim Chowdhury was elected unopposed in the 2014 general election after opposition parties withdrew their candidacies in a boycott of the election.[11]