Heat water in a deep pot and place a bamboo steamer over it. Place a banana leaf inside the steamer. Grease the leaf with some sesame oil. Close the lid and steam it. Slightly crush the lemon grass and place it in the steamer. Spread some basil leaves in the steamer. Add the soaked rice to the steamer. Close the lid and steam till the rice is half cooked. Quarter the cucumber and halve each piece. Heat sesame oil in a pan. Add red and green chillies to it. Fry the chillies till their colour changes and set aside. To the same oil, add the diced pieces of red and yellow capsicum and sauté them. Add poppy seeds and clarified butter mix well and set aside. Retain the oil with poppy seeds. Add cloves turmeric powder, coconut milk to it. Let it boil a bit. Add the half cooked rice to the pan. Fold and mix the rice properly. In the serving plate, arrange the cucumber slices. Place the quartered cucumber and stir fired capsicums and chillies in banana leaf squares and place them in the plate. Arrange the turmeric rice in the plate. Garnish with sesame oil and serve hot.