Yes, you can use the LED Flash as torch also.
You can store up to 1000 contacts in Metro XL. In addition, you can store up to 250 contacts in each of your sim card. So, if you are using 2 sim cards, in total you can store up to 1500 contacts.
Yes, smart search option is available.
Yes, Samsung Metro XL does have call conference facility.
Yes, Samsung Metro XL supports the Kannada language.