For each fish, carefully make 3-4 slit marks on both sides with a sharp knife.
Marinate the fish with 1 tsp lemon juice and a little salt. Rub well, keep aside for 15 odd minutes.
Add all the ingredients (other than the oil) to a small bowl, mix well. Smear the fish with the spice-rub, massaging the outside, into the slits as well as the insides. (This step is key to the success of this dish. A tiny bit of patience massaging the fish with the spice mix for that extra couple of minutes raises the dish to a divine high !!)
Cover with a cling wrap, leave to rest in the fridge for at least an hour.
Heat oil in a flat pan, fry the fish over a medium flame till golden brown and the spice-rub starts to caramelize, about 3 minutes I reckon. Then flip over, cook the other side of the fish till golden, another 3 odd minutes.
The tawa fry is done. Serve hot with lemon wedges and onion rings