To cook the Alu Tama, the pressure cooker is preffered. But if you don't have the pressure cooker, you can also use the normal cooking pot. Heat the oil in the pressure cooker or pot, add the potato and beans, fry it for 5 minutes and stir it occassinally. Give the soup stock into the pressure cooker (pot), add salt, cucumin, turmeric and cooked it untill the pressure cooker whistle or 30 minutes in pot.
Heat the extra pan with oil. Add the chopped onion, stir it for 2-3 minutes and add the bamboo shoot with some salt. Add tomato and cooked the bamboo shoot until it is ready.
Add the cooked bamboo shoots from the pan into the soup and cooked it for 10 mintues.