hi...
try air canada. a friend of mine went last month to canada with her daughter. the flight ticket was approx 46000 per person round tip from delhi to toronto. booking done online 2 and half months early.
wait for other inputs too.
I too am looking for further information on this. Somebody told me about lufthansa but the cost of it appeared to be more when I checked it on line.
please share if you get any new information
sushidoc