Pewdiepie is the biggest channel on Youtube with the huge number of subscribers for nearly 1 decade. Where T-series is the second biggest Youtube channel. T-series is about to overtake and become the biggest Youtube channel.
Felix Arvid Ulf Kjellberg, known online as PewDiePie, is a Swedish YouTuber and video game commentator, best known for his Let’s Play commentaries and vlogs.
According to YouTube tracker — Social blade gamer and comedian Pewdiepie’s channel is growing at a rate of 30,000+ subscribers per day.
T-Series is an Indian music and film production company based in New Delhi founded by Gulshan Kumar. Most of the channel’s video posts are Bollywood-style music videos featuring Indian pop stars. Needless to say, it has a massive fan base. 
T-Series is raking up 1,43,000 subscribers each day.
T-Series joined YouTube in 2006 and has released 12,640 videos, while Pewdiepie, who joined the platform in 2010, has 3596 videos to his name.
Let’s see who wins the battle with a subscribers trophy in hands.