RAMNAGAR, April 20 -- Survivors of the deadly Udhampur bus tragedy recalled scenes of sheer panic and desperate cries for help, crediting the Army's swift and heroic rescue with saving numerous lives.

At least 21 people were killed and 29 others injured on Monday when a packed private passenger bus plunged nearly 100 metres down a treacherous hillside in Jammu and Kashmir's Udhampur, crushing an auto-rickshaw before landing horrifically upside down on the road below.

An Army convoy passing along the winding hilly stretch rushed to the spot and led the intense rescue operation after the driver of the private bus lost control while negotiating a sharp blind curve near the hilltop Kagort village in the Ramnagar area around 10 am.

Amid pierc...