The decision was made at a Corps Commanders' conference presided over by Army Chief General Qamar Bajwa at the General Headquarters in Rawalpindi, the military's media wing Inter- Services Public Relations (ISPR) said in a statement.
The Generals were briefed about Jadhav and it was concluded that "no compromise shall be made on such anti-state acts", the statement said.
The Corps Commanders' conference is a key high-level forum in which all corps commanders and principal staff officers take part. The decisions are announced through brief statements but they are considered very important. It confirmed the death sentence to Jadhav, 46, by army chief Gen Bajwa after the Field General Court Martial found him guilty of "espionage and sabotage activities" in Pakistan.
Pakistan claims its security forces had arrested Jadhav from the restive Balochistan province on March 3 last year after he reportedly entered from Iran. It also claimed that he was "a serving officer in the Indian Navy." The Pakistan Army had also released a "confessional video" of Jadhav after his arrest.
India had acknowledged that Jadhav had served with the navy but denied that he has any connection with the government. The incident is expected to further deteriorate already strained Indo-Pak ties which were hit after deadly attacks in Pathankot and Uri by Pakistan-based terrorists last year.
External Affairs Minister Sushma Swaraj had warned that Jadhav's execution will be taken by India as a "pre-meditated murder" and Pakistan should "consider its consequences" on bilateral relations, if it proceeds on this matter. The top Pakistani military officials also reviewed the national security environment and recent developments in the region at the 201st conference of Corps Commanders.
Gen Bajwa lauded the efforts of intelligence agencies and other law enforcers towards the successful execution of counter-terrorism operations across the country, it added.