New Delhi, Oct 8 (IANS): Indian Army chief General Bikram Singh said Tuesday it was impossible for terrorists to infiltrate into India in Jammu and Kashmir without the knowledge of the Pakistani Army.

"Along the Line of Control, there is no way terrorists can operate in that area without the knowledge of Pakistani army," Gen. Bikram Singh said Tuesday.

He said the army has got much evidence, including a letter found with a terrorist, old information and intercepts.

He added: "The covering fire that is given to them to infiltrate, it comes from their posts."

"I am very clear, having known the deployment along the Line of Control no activities by the terrorists can take place without the support of the Pakistani Army," he told TV channel Times Now.

Talking to reporters at the Hindon air base, he said seven terrorists have been killed so far.

He also said it was not an intrusion but an infiltration bid.

"This is not an intrusion, it is a desperate bid for infiltration," the army chief said on the sidelines of the annual Air Force Day Parade.

"These terrorists were in a nullah (drain). What advantage would they get by sitting in a nullah. Seven of them have been killed," he said.

The terrorists were killed in last four days in a mop up operation in Keran sector of Jammu and Kashmir.