Hi diverdil, When i've finished using an iron pan, i'll wash it out with water, then stick it back on the hob.
Let it dry off and when it starts smoking, i add a tsp or two of oil and wipe it all over with some paper towel leaving a thin oil film on the surface.
Some people will say it has to be ali only for curries, but an iron pan is fine. The only problem with cooking curries in iron, is the use of tomatoes in most dishes, so it will never stay fully seasoned like a wok.
But you should have no problem with it, there are plenty of BIR's using them for all curries.

Cheers, Frank.
