The subscriber battle between Swedish gamer Felix Kjellberg's PewDiePie and Indian production firm T-Series helped both to achieve a feat in the youtube world. Both have become first YouTube channels to cross 90 million subscribers on Monday.

The historic feat was first achieved  PewDiePie, followed by the Indian production firm T-Series. The battle between the two channels for the top spot on YouTube and the ensuing campaigns to get more followers was a key factor in achieving this milestone.

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After achieving this feat PewDiePie took to Twitter and wrote, “Thanks for 90 million subs, feels weird celebrating but just wanted to say thanks for all the support and love especially as of late.”

Both the channels crossed the massive milestone of 90 million subscribers, voices online speculated of when will two surpass 1 Billion subscriber count – a feat attained only by YouTube's combined official channels.

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The battle between the two has been going on for months now. PewDiePie has dominated the top spot for six years and continues to do so. It faces stiff competition from Bhushan Kumar-owned record label, which overtook on three occasions for a few minutes, first time on February 22 for about eight minutes, second on March 9 for about eight minutes and then on March 13 for a brief minute.. Curretnly PewDiePie is 18,222 subscribers ahead of T-Series at the time of filing this story.