The micro-blogging platform celebrated the occasion by inviting its users to tweet #Hashtag10, which would enable a custom '#' (hashtag) emoji.
"From social movements like #ChennaiFloods to fans of TV show BiggBoss #BB10, and iconic sporting events like the #IPL, India's top hashtags is a unique mix that speaks to India's culture, sense of identity and passion. It's #whatshappening," said Taranjeet Singh, Country Director, Twitter India.
Twitter user Chris Messina, on this day 10 years ago, tweeted #barcamp -- the first time a hashtag was used.
Today, an average of 125 million hashtags are shared globally every day on the platform.
#TheWalkingDead was the most tweeted television show hashtag of all time and in the movies category, it was #StarWars.
The most tweeted global sporting event hashtag was #Euro2016.