Sarabjit, 49, suffered critical head injuries in the assault by four to five prisoners with bricks and plates in Kot Lakhpat Jail in Lahore Friday.

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He has been on death row in Pakistan since 1990 after being convicted by Pakistani courts for bomb blasts in Lahore and Multan, which left 14 people dead. His family claims he is innocent, and that he crossed over to Pakistan in August 1990 in an inebriated state, and was arrested there.

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His wife Sukhbir Kaur, sister Dalbir Kaur and two daughters arrived in Lahore Sunday after grant of visa by the Pakistani government.