Gagan Narang failed to replicate the form that fetched him the 10m air rifle bronze as he crashed out of the 50m rifle prone event at the London Olympics but compatriot Joydeep Karmakar kept alive India's hopes by advancing to the finals here today.

Narang, who just four days ago became the country's first medal winner at the London Games, could fire just 593 out of 600 to finish a shocking 18th in a field of 50 competitors and lost a great chance of another podium finish.