Dalbir Kaur, sister of Indian prisoner on death row Sarabjit Singh, submitted a clemency petition to Pakistan High Commission urging President Pervez Musharraf to pardon her brother."I appeal to Musharraf sahib to reconsider his decision of rejecting Sarabjit's clemency petition," Kaur said outside the Pakistan High Commission.Kaur, who met political leaders today including Congress president Sonia Gandhi, Railway Minister Lalu Prasad and External Affairs Minister Pranab Mukherjee, went to Pakistan High Commission to submit her appeal to Musharraf."I have requested Musharraf sahib to show some leniency towards my brother and allow us to meet him," she said, adding ‘Sarabjit's daughters are very much disturbed with the news of death warrant against their father’.Officials at the High Commission assured Kaur that they will convey her request letter to Pakistani President. Sarabjit has been sentenced to death for his alleged involvement in the 1990 bomb blasts in Lahore and Multan that claimed 14 lives.