Yes, Samsung Metro XL does have FM radio.
Yes, Samsung Metro XL does have flash with camera.
Yes, Samsung Metro XL does have music player.
Yes, Metro XL does support the Tamil fonts and language.
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.