Yam in Gravy
SENNAIKKAI  KOOTU
500  gms yam (suran)     
1 cup thuvar dal 
1/2 tsp turmeric powder  
1 cup coriander leaves  
1/2 cup tamarind pulp  
a few curry leaves  
oil as needed  
salt to taste 
 Grind: 
1/2 coconut, scraped  
1tsp chana dal   
10 whole red chillies  
a pinch of asafoetida   
seasoning :   
1/2 tbsps mustard seeds  
1/2 tsp urad dal   
1 tsp grated coconut