proof the yeast in sugar dissolved with ¾ cup warm water.after the yeast proofs and rises, add all the flours, garlic paste, lemon juice or yogurt, salt and oil to the yeast mixture.knead to a smooth dough.add water if required while kneading.cover with a moist cloth and keep the dough to leaven for 1:30 to 2 hours.when the dough doubles up, then make medium sized balls of the dough.cover and keep aside for 15-20 mins.in a plate or tray take the chopped garlic, celery leaves and nigella seeds. mix these well.take each ball on a dusted board and roll into a small disc of 2 inches.place this disc on the garlic-celery-nigella-seeds mixture.remove and keep on a dusted boardnow roll to a round of about 5 to 6 inches diameter,heat a tava or frying pan.place the garlic and celery side of the naan touching the hot tava.cook this side till browned and done.now hold the naan with a tong and place the uncooked side directly on fire.roast this side on the fire till browned and done.smear some oil or ghee on top of the naan.cook all the garlic naans this way.serve garlic naan hot or warm.