This is the fourth such arrest in Haryana in as many days.
The police said Armaan was nabbed after they received a tip-off from the central investigation agencies.
He was allegedly sharing the information for a long time through WhatsApp and social media platforms.
When his mobile phone was searched, conversations and photos and videos shared with Pakistani numbers were discovered, said police.
A local court has sent Armaan to a six-day police remand.
A senior police officer said a case has been registered against the accused under Section 152 of BNS sections 2,3,4, and 5 of the Official Secrets Act, 1923, and under the treason sections. PTI COR AMJ AMJ AMJ