Indrakshi mala or Indra mala is the rarest of all malas, which can be made, acquiring all possible beads from nature. It has 1 to 21 mukhi, Gaurishankar, Ganesha & A Trijuti also added if available, but is not compulsory. It is said that the wearer of Indrakshi mala can fulfill all of his/her desires —both materialistic and spiritual. All negativities, as a result of jealousy, evil eye, ghosts or from the fear of unknown get removed by using this mala. It gives blessings of all Gods whether in incarnation form (Sagun) or in the Brahma Swaroop (Nirgun).
As per one unofficial survey done in the year 1989, there were only five such Indrakshi Mala in the world, one of which was outside India. Another estimate is that up to the year 2006, there were 25 such malas in the whole world including India. The estimate is based on availability of 20 and 21 mukhi rudrakshas from Nepal, which were traded each year. There is no statistical data of traditionally-owned malas of this type, which surely existed in few well-off families. Indrakshi Mala made from Indonesian beads exist in larger numbers. An ideal indra mala is made with total of 108 beads, out of which 1 to 21 mukhis, Gaurishankar and Ganesh make up for 23, while the rest should be five mukhis. It is believed that 108 types of Gayatpi in different forms reside in this mala and is therefore divinely powerful. A mala of 27+1 beads is also popular, and here, other than 21 beads 1 to 21 mukhi, a Gaurishankar and Ganesh, five beads of any mukhi are added. Indra mala can be worn or kept at the place of worship and due care should be taken to maintain it in view of the rarity of the beads. For example, all beads should be firmly fastened with wires or thread and preferably capped using silver or gold for protection of the beads at their mouth or tail. Monthly cleaning of the beads and application of oil as described for bead maintenance should be strictly followed, if the mala is being worn. If it is being kept at pooja place, then keep some camphor near the mala and make the place insect-free.
As people who can afford this type of mala are either from the rich class and/or are deeply devoted to Lord Shiva, it is difficult to get a clear opinion as to what this mala does after one wears it! Our experience is that only spiritually inclined and pious people or really rich people go for such investments and they get full return for this in terms of protection, name and fame. People attach several mystical stories to this Indrakshi mala but they may not be entirely correct. However, it is true that those who possess these beads and either wear them or keep them at pooja place with devotion, always retain their top positions in their business or profession.
References : Kamal N Seetha (2014) The Power Of Rudraksha.
Indrakshi Mala Rudraksha.