Planets & Rudraksha:

 Many astrologers have worked on Rudraksha. They suggest 'Mukhi' based on Birth Rashi and horoscope.However one could wear according to their needs.

Astrologers suggest to wear Rudraksha according to the ruling planet as under:-

Sun - One Mukhi or Twelve Mukhi
Moon - Two Mukhi
Mars - Three Mukhi
Mercury - Four Mukhi
Jupiter - Five Mukhi
Venus - Six Mukhi or Thirteen mukhi
Saturn - Seven Mukhi or Fourteen Mukhi
Rahu - Eight Mukhi
Ketu - Nine Mukhi