Dinanagar (Punjab), Jul 28 (IANS): The global positioning system (GPS) sets recovered from the three terrorists killed here clearly indicates to a Pakistan link in Monday's terror attack in Punjab's Dinanagar town, sources said on Tuesday.

The terrorists were killed by the special units of the Punjab Police after fierce gun-battle lasting over 11 hours.

Sources in intelligence agencies and Punjab Police said here on Tuesday that the track of the GPS sets revealed that the terrorists had moved from Shakargarh area in Pakistan along the India-Pakistan border on Sunday and entered India.

"The terrorists used the route of rivulets along the border belt and reached Bamiyal town. While observing that security in the Jammu region, which is very close, was tight, the terrorists moved towards Dinanagar town," a police official told IANS on condition of anonymity.

Forensic experts from Chandigarh have arrived at the police station complex here to search for clues about the identity of the three terrorists who besieged the complex for over 11 hours on Monday.

The forensic team was examining the building where the terrorists were holed up. The car, which was hijacked by the terrorists and on which they came to the police station complex, was also being examined.

Punjab Director General of Police (DGP) Sumedh Singh Saini said that the terrorists were carrying AK-47 automatic weapons and Chinese-made hand grenades.

"We are examining clues from their clothes and other things that they were carrying," a forensic team official said.

Seven people, including a senior police officer, three home guard personnel and three civilians, were killed in the terror attack.

Dinanagar town, which is just 12 km from the India-Pakistan border, is located 25 km from the Jammu and Kashmir border and 235 km from Chandigarh.