India is grappling with the possibility that one of its own undercover operatives helped equip the Islamist extremists who attacked Mumbai, killing more than 170 people.
Police in Indian-controlled Kashmir demanded the release of one of their undercover agents on Sunday after he was arrested by police in Delhi for allegedly supplying a mobile SIM card used by the Mumbai gunmen.
The operation turned sour, however, after police in Srinagar, Indian Kashmir's summer capital, said that Ahmed worked for them, raising the possibility that an Indian agent aided the militants that committed India's worse terror attack in 15 years.
A senior officer in Srinagar, Kashmir's summer capital, said Calcutta police were told that Ahmed is "our man and it's now up to them how to facilitate his release".
He said that Ahmed was a Special Police Officer, part of a semi-official counterinsurgency network whose members are usually drawn from former militants.
"Sometimes we use our men engaged in counter-insurgency ops to provide SIM cards to the [militant] outfits so that we track their plans down," he said.
Mumbai terror suspect 'was Indian undercover cop' - Times Online