In a letter to Hussain, the mother of Hamid Ansari said: "Mohtaram Sadar - your government has shown clemency to foreign nationals who have committed far graver offences than Hamid Ansari.
"The country's credit for listening to humanitarian calls will go up and the chances of relief for Pakistani citizens in Indian prisons might improve if you could remit the remaining period of Hamids prison term."
The Indian national was tried in a military court and was awarded three years' vigorous imprisonment that started from December 15, 2015 and will end on December 14 next year.
Ansari, a Mumbai resident, suffered injuries after he was attacked by inmates in the Peshawar Central prison last year.
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According to the Human Rights Commission of Pakistan, Ansari, an assistant professor at an Indian management institute, became friendly with a girl belonging to Kohat (in Kyber Pakhtaunkhawa province of Pakistan) through Facebook.
"Thus, for five years he has been in the custody of the Pakistani authorities. Charged with espionage and not with illegal entry into Pakistan, he was sentenced to three years imprisonment by a military court," says known rights activist I A Rehman.
"There is no doubt that Hamid Ansari committed an offence but his motives, love or a desire to help a woman in distress, are strong mitigating circumstances. He has already suffered enough for his naivete," he said and demanded his immediate release.
President of the Commission of Inquiry on Enforced Disappearances Justice (retd.) Javed Iqbal had said Shahzadi had been recovered from an area on the Pakistan-Afghanistan border on Thursday night.
"Non-state actors and anti-state agencies had abducted her and she has been recovered from their custody," Iqbal said.
Rehman said Shahzadi has gone missing again. "Missing of Shahzadi two months after her return from two-year captivity is alarming."
He says Shahzadi, a young and poor journalist without any clout, had dreams of helping her fellow human beings.
"She persuaded Ansaris mother to grant her authority/ permission to pursue the matter before the Peshawar High Court. She also met the Indian high commissioner at a public meeting, probably to seek his help in the case," he said.
The 26-year-old local reporter of Daily Nai Khaber and Metro News TV channel had gone missing on August 19, 2015, when some unknown men allegedly kidnapped her while she was en route to her office in an auto-rickshaw from her home in a populated locality of Lahore.