Air India flight AI-244, which took off earlier in the day from Kabul with 129 passengers, landed in Delhi this Sunday. The future of the airline's three-times-a-week flight to the strife-hit country is now uncertain given Taliban terrorists' near-total take over of even the capital, sources told NDTV.

Earlier, after taking off from Delhi in the morning today, AI-243 landed safely in Kabul after an hour's delay amid the turmoil, ANI reported. The flight had to delay landing as Kabul's Air Traffic Control  (ATC) was unavailable to help even as the Taliban reached the city's outskirts.

A charter flight to Kabul was cancelled earlier today. With the spike in military activity in the Kabul airspace, operating civilian flights has become challenging, officials said.

The Taliban entered Afghanistan's Kabul today as the United States evacuated diplomats from its embassy by helicopter and a government minister said power would be handed over to an interim administration.

A spokesman for the insurgent group said it was in talks with the Afghan government for a peaceful surrender of Kabul.

"Taliban fighters are to be on standby on all entrances of Kabul until a peaceful and satisfactory transfer of power is agreed," the statement said, according to Reuters. The entry into the capital caps a lightning advance by Taliban who were ousted from Kabul 20 years ago by the US after its began its much vaunted “war on terror”after the September 11 attacks.