Take a wok, add oil, heat it. Add kalonji seeds, let it splutter.

Now add garlic, saute it until light brown. In goes green chilli, cook it for a sec.

Add haldi powder now, mix it well. In goes onion, stir it.

Now add karela pcs, stir fry it for a minute. In goes salt. Mix it well.

Lower the flame, cover it with the lid, cook it until karela is almost cooked. Do not over cook it.