Take a thick bottom pan[uruly],put the elephant foot yam into pieces,and raw banana pieces,turmeric powder,pepper powder.1glass water to it and boild it the vegetables become softer add salt and ghee to it and stir well, all water should evaporate.

Add 1 Litre curd,curry leaves,to it and stir continuosly untill the curd start to boil,keep the stove in simmer until the curd turns to thick.

Grind the coconut, jeera,green chilli in to fine paste.add little water for consistency.Keep the gas on simmer add coconut paste to the curry and stir well,no water needed because it is a thick curry.add a pinch of fenugreek powder

Hot another pan add coconut oil add mustard,dry red chiili broken,curry leaves, put this in to the curry.