2) ATK (1.68m followers)
Two-time winners ATK are one of the most popular clubs in ISL. They are the only club who entered semifinals in all three seasons and have one of the highest fan followings in the league. The team had a massive fan following after they obtain their marquee signing, Robbie Keane in the upcoming league.

Facebook - 1100084 likes
Twitter - 478k followers
Instagram -107k followers
1) Kerala Blasters FC (2.95m followers)
Kerala Blasters are currently the most popular club in ISL on social media. Kerala Blasters are the only club to have completed 2 million followers on social media. They have also reached 1 million-mark on Twitter. The Blasters' average attendance of around 48,000 the during last three season, which often translates to a large number of online support. Another great aspect of their social media presence is that co-owner and cricket legend Sachin Tendulkar has a huge follower base.

Facebook - 1017882 likes
Twitter - 1.6M followers
Instagram - 336k followers