Pakistan on Wednesday proposed two sets of dates to India for holding expert level talks to resume air links, severed after the terrorist attack on Parliament on December 13, 2001.

The foreign ministry proposed August 27-28 and Sept 3-4 as possible dates for holding talks between civil aviation officials of both sides.

"The talks would be held in Islamabad after acceptance of the dates by the Indian side," the ministry said in a statement.

Pakistan had earlier sought guarantee from India that it would not unilaterally close its airspace again.

While road links have been restored with the resumption of Delhi-Lahore bus service, rail and air links are yet to be resumed between the two countries.