The Inter-Services Public Relations (ISPR) said a Field General Court Martial awarded the capital punishment and Army Chief General Qamar Javed Bajwa had confirmed the death sentence.
A brief ISPR statement described Jadhav, who allegedly used the alias Hussein Mubarak Patel, as an Indian Naval officer attached to the Research and Analysis Wing (RAW).
Indian officials have said he was no more in naval service.
Jadhav was arrested on March 3, 2016, reportedly in Balochistan’s Mashkel area, for “involvement in espionage and sabotage activities against Pakistan”, the ISPR said.
The statement said Jadhav was tried under section 59 of the Pakistan Army Act, 1952, and section 3 of the Official Secrets Act, 1923.
The Court Martial found Jadhav guilty of all the charges, the ISPR said.
“He confessed before a Magistrate and the court that he was tasked by RAW to plan, coordinate and organise espionage, sabotage activities aiming to destabilize and wage war against Pakistan by impeding the efforts of law enforcement agencies for restoring peace in Balochistan and Karachi,” the ISRP said.