His family in Tamil Nadu is praying for his safe return.
"We are all in the dark about my brother kidnapped in Afghanistan. Please give us some good news about him and his safety," said his brother Albert Manoharan.
"The information flow seems to be one way - from our side. There is no news about my brother in Afghanistan," Manoharan told IANS over phone from Sivaganga district where the family lives.
He said his brother was working with an education charity in Herat province.
"We spoke to him after the Indian consulate in Herat was attacked by militants recently. My brother said he is safe and there are no threats to him," Manoharan said.
According to Manoharan, an official of the Indian embassy in Afghanistan spoke to him and assured him that necessary steps are being taken.
He said the family members have petitioned the Sivaganga district collector who, in turn, told them that action is already being taken at the highest levels of the Indian government.
Father Prem Kumar was in constant touch with his family in India from Afghanistan through Skype network.