Soak chickpeas overnight in three cups of water. Drain, add three cups of fresh water. Tie tea leaves in a piece of cloth and put it in the water and then boil till the chickpeas are cooked and soft and dark in colour.
Strain and keep aside. Heat oil, add bay leaf and chopped onions and sauté until golden brown in colour. Add ginger paste, garlic paste and slit green chillies, stir for some time and then add chopped tomato, red chilli powder, coriander powder, turmeric powder, chana masala and cumin powder and sauté till oil surfaces.
Add boiled chickpeas, salt and approximately one cup of water and cook till the chickpeas get coated with the thick masala. Sprinkle garam masala powder, mix well and serve hot.