11 Mukhi Rudraksha as found in various Puranas :
Eleven faced Rudraksha is regarded as the light mass of Lord Rudra Shiva (Eleven Rudras). For the devotees of Lord Shiva it is the most effective and most successful Rudraksha. There are eleven Rudras and the eleventh Rudra is Lord Hanuman and taking his name ghosts and evil spirits run away. He is full of learning, virtues, cleverness and wisdom. Therefore, all these virtues are filled in the man who wears this eleven faced Rudraksha. It makes the wearer strong, wise, healthy and without disease.
This Rudraksha is the symbol of Indra, the king of Gods. It gives the wearer permanent happiness. It means that pleasure and happiness come to the man who worships Indra and makes him happy. It relieves the wearer from the fear of sudden death. It also helps in practicing meditation and religious rituals and removes the problems of yogic practices.
11 Mukhi Rudraksha has no particular ruling planet. It induces courage and confidence in the wearer to lead an adventurous life. It can be worn in gold or silver and string in red thread.