The body of Kirpal Singh, the Indian prisoner who died under mysterious circumstances in Lahore's Kot Lakhpat Jail, was brought to the Wagah border on Tuesday afternoon.
Earlier on the day, his post-mortem was done in the Jinnah hospital in Lahore.
The family members of Singh had on Friday met Home Minister Rajnath Singh to express their concerns over the gruesome treatment meted out to Indians languishing in Pakistani jails.
Singh's family had earlier rejected Pakistan's claim that he died of a heart attack and demanded a post-mortem to ascertain the true facts behind his sudden death.
"How can we believe that he died of heart attack? His body should be sent to us and post-mortem should be done. We want to know the truth," Singh's nephew had told ANI in New Delhi.
Singh had allegedly crossed the Attari-Wagah border to enter Pakistan in 1992 and was subsequently sentenced to death in connection with a serial bomb blasts case in Pakistan's Punjab province.