<Tr> <Th> Average attendance </Th> <Td> 15,047 </Td> </Tr> <Tr> <Td_colspan="2"> ← 2016 2018--19 → </Td> </Tr> <P> The 2017--18 Indian Super League season was the fourth season of the Indian Super League, one of the top Indian professional football leagues, since its establishment in 2013 . The regular season started on 17 November 2017 and ended on 4 March 2018, The finals began on 7 March 2018, concluding with the final on 17 March 2018 . ATK were the defending champions from the 2016 season, however they could not advance to the playoffs . Chennaiyin won their second Indian Super League title by defeating Bengaluru 3--2 in the final . </P> <P> Two new sides joined the league as expansion teams: Bengaluru and Jamshedpur . The two new clubs are the ninth and tenth teams in the league . This made it the first edition of the ISL in which there are more than eight teams participating . As well as expanding two teams, the league also expanded two more months, being played in five months instead of three . </P>

Who won the final match of isl 2018