We have seen these little charms created out of one lemon, seven green chillies and a piece of charcoal on a string all over India. They are usually in the entrances of houses or shops or they are attached to cars or auto-rickshaws. When I enquired what they are, I learned that they keep the home or business safe from evil spirits. They are usually renewed every Saturday. A “Nimbu-Mirchi Totka” as it is called, traditionally has “seven mirchis” (chillies) and “one nimbu” (lemon) to protect the home from all bad and evil energies.