Take bowl put urad dal,and fenugreek seeds pour water leave 5 to 6 hours it should soak that

Then drain water rinse wisely then transfer dal into blender make fine semi liquid kind batter

Mean while take another bowl put steam rice ravva pour water wash properly then take a white cloth put washed rava drain water full it should be wet rava but not watery

Then assemble urad dal paste into rava close lid leave overnight it should be fermentation after that add salt,baking soda mix well take thatta mean deep shaped bowl pour batter this bowl put into a steamer

Steam at 15 to 20 mins once it fully steamed take a tooth pic check if it non sticky means perfectly steamed take a serving plate turn up thatta kudum leaves thatta freely comes out