Principal Opposition party AIUDF won three seats and an Independent one.
When trends started indicating a dismal performance for Congress, Gogoi announced that he would submit his resignation to party president Sonia Gandhi accepting full responsibility.
"Prior to the polls, I had said, I would step down if the party fails to win more than seven seats and Tarun Gogoi is not a man who will go back on his words," he said.
BJP made inroads in traditional Congress bastion of Dibrugarh, Lakhimpur and Jorhat, retained the prestigious Gauhati, Nowgong and Mangaldoi seats, wrested Tezpur from AGP, but lost the key Silchar constituency to Congress.
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Congress lost Barpeta and Karimganj (SC) to AIUDF, Dibrugarh, Lakhimpur, Jorhat, retained Kaliabor and Autonomous District (ST) and wrested Silchar from BJP.
In trouble-torn Kokrajhar(ST) constituency, Independent candidate and a former ULFA battalion commander Naba (Hira) Sarania retained the seat by winning by a record margin of 3,55,779 votes.