The sister of Sarabjit Singh, the death row prisoner languishing in a Pakistani jail, today met President Pranab Mukherjee, seeking his intervention for his release and demanded that the Indian High Commissioner in Islamabad visit him in the prison to check on his health.

Dalbir Kaur met Mukherjee and Union Home Minister Sushil Kumar Shinde and pressed for an immediate visit by the Indian High Commissioner to Kot Lakhpat Jail in Lahore where Sarabjit is lodged.

Kaur's meetings came against the backdrop of a letter written by Sarabjit to Congress chief Sonia Gandhi in which he claimed that there was a threat to his life in jail and that he was being served "wrong contents in the food (which is) deteriorating his health day by day".

"I have requested the President and Home Minister to ask the Indian High Commissioner in Pakistan to visit Sarabjit in jail," she said.