Inderjaal which is also known as witchcraft is usage of supernatural power for evil and selfish purposes and to perform malicious practices to destroy someone physically or mentally or financially. It can be done using the victim's hair, clothes, photos or looking directly into eyes. Practicing black magic is not something new, it has been practiced since generations and hence we need to be very careful in this time of Kalyug where you are surrounded by very few well-wishers.