Heat oil in a pan add cumin seeds once crackels add asefetida and green chillies than add patatoes and bean and all the masalas expect amchur mix with very well and cover and cook it for 7-10 minutes or till it is nicely cooked.. Mix it in between to avoid stick in the pan..

Add amchur powder switch off the flame and cover it for 2 minutes.. Aalu beans sabji is ready to serve.. Enjoy it with chappatis..