Thaw the prawns with cold water and keep aside in a colander to drain.
Make the marinade by adding all the ingredients in a large bowl and mixing well.
Add the prawns in the marinade and toss gently. Keep aside for 30’.
In the meantime, turn the oven to 250° C, broiler/griller on and rack placed to the top position.
Take a large no-stick oven proof pan and add the shrimps. Place in the oven and cook for about 4’ and then flip to cook for further 3’. If cooking on charcoals, then 3’ on one side and 2’ on the other are good enough.
Serve along with lime wedges and fresh coriander.