The terrorist was disguised as a seller of shawls and carpets and was attempting to enter Indian Territory when he was nabbed by the Sahastra Seema Bal when he was trying to enter via Sonauli checkpost in Maharajganj.
As per sources, he was being sent to the valley for an important mission.
The v34-year-old terrorist was carrying a Pakistani passport and an identity card
of being a resident of Lala Musa village in Gujrat district in Punjab province of the neighbouring country, it said.
Ahmed was handed over to the Uttar Pradesh ATS for further investigation.
According to security agencies, Ahmed had joined Hizbul Muzahideen in 2002-03 and moved to Pakistan. He was involved in a number of terrorist activities. In 2002, he sustained bullet injuries during an encounter with the Army in Banihal.
"Ahmed was residing in Pakistan since September, 2003. He was involved in many attacks against civilians and security forces including an attack on an STF camp in India in 2003.
"He was sent to India by his handler for a specific mission," an SSB spokesperson said.
When he was asked for his identity proof by the SSB personnel at Sonauli, Ahmed was unable to produce any supporting documents, the spokesperson said.
The paramilitary, based on initial interrogation of the terrorist, said Ahmed and his associate Mohd Shafi landed in Kathmandu on May 10 from Faisalabad in Pakistan via Sharjah. Shafi separated from him in Kathmandu.