Hari and Asha from Kannur, Kerala lives in a mud house in tune with nature. Their 900 square feet house completed in 2011 and costed 3 lakhs, out of which 2.5 lakhs were spent on labor charges and 50,000 rupees for the materials. They don't have fan or fridge and uses a traditional method for preserving foods.They eat only when they feel hungry and they are mostly self sufficient with rice and vegetables from their farm. Monthly expenses are 5000 rupees.
Some other links