"Kulbhushan Jadhav has been sentenced to execution through a farcical trial. He remains under custody of Pakistan's military. He has clearly been coerced to refuse to file a review in his case," the MEA said.
Ram Singh, one of the six accused in the case, allegedly committed suicide in Delhi's Tihar Jail. A juvenile convict was released from a reformation home after serving a three-year term.
In July this year, the ICJ, by a vote of 15-1 in the Jadhav case, upheld India's claim that Pakistan is in egregious violation of the Vienna Convention on Consular Relations on several counts.
Jadhav, 49, was purportedly "arrested" from Balochistan by Pakistani security forces on March 3, 2016, after he allegedly entered the country from Iran as claimed by Islamabad.
The ICJ in July had asked Pakistan to comply with the Vienna Conventions and provide consular access to Jadhav and to ensure "effective review and reconsideration of his conviction and sentences".
Pakistan on Sunday announced it will grant consular access to the retired Indian Navy officer, who was sentenced to death by a Pakistan military court on the basis of extracted confession of “espionage and terrorism” after a closed trial in April 2017.
This comes a month after Pakistan Foreign Office had announced that they would grant consular access to the 49-year-old Indian prisoner. India did not agree to the meeting since the terms and conditions were not suitable.
In a major win for India, the world court had continued its stay on the execution of the Indian national, held in a Pakistani jail on allegations of spying and found that Pakistan breached the Vienna Convention by not giving him consular access.
Hailing the ICJ's decision, he called upon Pakistan to release and repatriate Jadhav. Amid claps and thumping of desks by fellow parliamentarians, Jaishankar said the government welcomes the world court's verdict.
India put intense diplomatic pressure on Pakistan through numerous diplomatic notes and demarches and letter by the External Affairs Minister (EAM) over a sustained period of time for consular access and release of Jadhav, as per government sources.