The man, identified as 50-year-old Abu Bakar, is reportedly afflicted by a mental disorder, the Dawn newspaper reported today. He was detained by the Pakistan Rangers.
Abu Bakar, the son of Ameer Nohri, reportedly told local residents he had visited the graves of his grandparents near Gogasar to seek forgiveness for murdering his sister in 1988.
He is a resident of Amyani village near Tamlor railway station in Barmer district of Rajasthan.
An Indian court sentenced him to life imprisonment for the murder and he was acquitted in 2011. When he reached home, his parents chained him after he attacked them. Later, they again got him locked up.
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Three days ago, he was released from the lock-up and went to the graves of his maternal grandparents at Wali Faqir in India. He then sneaked across the border to visit the graves of his paternal grandparents near Gogasar in Pakistan to seek forgiveness for murdering his sister, the report said.
He further told farmers that he was injured when he scaled barbed wires at the frontier and fractured his leg while leaping from a height of 15 feet.
Officials of the Pakistan Rangers said Abu Bakar was being questioned by intelligence agencies.