On Board PM's Special Flight, Sept 12 (PTI) The recent chill in Indo-Pak relations could see a thaw with the possible resumption of Foreign Secretary-level talks between the two countries after Prime Minister Manmohan Singh's meeting with President Pervez Musharraf on the margins of the NAM summit later this week.

Sources close to the Prime Minister indicated that if the results of the talks between Singh and Musharraf were positive and productive then it could lead to the resumption of the stalled Foreign Secretary-level talks.

Though formally no dates were fixed, a round of anticipated foreign secretary-level talks was called off in the immediate aftermath of the July serial blasts in Mumbai.

Indications are that the Prime Minister will convey strongly the need for Pakistan to act tough in reigning in the terror outfits that operate from the Pakistani soil.

Foreign Secretary-designate P Shivshankar Menon, currently High Commissioner in Islamabad, is in the Prime Minister's delegation and would be around to assist him when he meets Musharraf.

This would be Prime Minister's fourth meeting with Musharraf after their two interactions in New York and one in Delhi last year.