It began on 25 August 2012 and finished on 27 May 2013.
24 teams were divided into groups A and B to take part in a three-round competition.
Group leaders gained promotion to the top tier, while bottom two clubs were relegated to the third division.
Following this success Guria returned to Umaglesi Liga after an eleven-year pause.
Tskhinvali achieved the same goal from the first attempt.