Jack Dorsey's tattoo represents the integral symbol that is used in mathematics (Photo: Twitter/Rahul Gandhi)

Congress chief Rahul Gandhi and Twitter co-founder and CEO Jack Dorsey met today. And, the two had a great time, if the photos of their meeting are anything to go by.

Dorsey, who is visiting India for the first time, and Gandhi posted a cute selfie together and the Congress chief said that the two discussed fake news.

When they met, the Apple Watch-sporting Dorsey also showed Gandhi his tattoo -- a prominent 'J' inked on his left forearm.

The tattoo, however, doesn't represent J for Jack. It is actually represents the integral symbol that is used in mathematics and the human collarbone.

According to a USA Today report, Dorsey's tattoo represents an F-sharp -- the integral symbol in mathematics -- and a human clavicle - the only bone, Dorsey said has "free range of motion."

Gandhi said that Dorsey had "dropped in to chat" and that the Twitter CEO explained what steps the micro-blogging site is taking to combat the menace of fake news.

Jack Dorsey, the Co Founder & CEO of Twitter dropped in to chat this morning. Twitter has grown into the most dominant conversations platform globally. Jack explained some of the steps being taken to keep those conversations healthy & to tackle the menace of fake news. @jack pic.twitter.com/TCkj6st4rl Rahul Gandhi (@RahulGandhi) November 12, 2018

Dorsey arrived in India on November. When he arrived, Dorsey tweeted that his "first time here after a lifetime of wanting to experience it".

On the day of his arrival, Dorsey met the Dalai Lama, whom the Twitter boss called an "amazing teacher".

Thank you @DalaiLama. You’re an amazing teacher.



Also: thank you for not actually pulling out my nose ring, despite a lot of painful effort. pic.twitter.com/fEYtui5EY0 jack (@jack) November 10, 2018

"Thank you for not actually pulling out my nose ring, despite a lot of painful effort," Dorsey also said, jokingly.

Dorsey's Twitter activity suggests that he has also been to Jaipur after arriving in India. Today, he is in Delhi where he met Congress president Rahul Gandhi.

He will later go to Indian Institute of Technology - Delhi, where he is scheduled to hold a townhall.

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