My Optra has a 2000cc CDRI diesel engine.
The problem is while that it starts at the first turn of key
in the morning. It stalls after 2 to 3 minutes.
Sometimes it re-starts after 30 minutes but stalls again in 2 minutes.
This 2010 model car had no such problems in the past.
It is summer here in India and ambient temperatures are 30 - 35deg C