There is always a question in the mind of the believer or wearer that how many Rudraksha should be worn and at which part of the body it should be worn to get better and effective results.
There are basically two approaches of wearing the Rudraksha either by consulting the epics or by consulting any priest or on previous experience of any friend or relative or family members.
As per different Epic Sources
Epic Source Shrimad Bhagwad
Body parts /organs
Number of beads to be worn
Sikha (Crown Hair)
1
Wrists (both right & left)
12/12
Neck
32 in 2 rows
Ears (both right and left)
6/6
Chest
108
Shoulders
500
Yajnopaveet (sacred thread)
108
Epic Source Shiva Puran
Body parts /organs
Number of beads to be worn
Crown
550 or 1,100
Yajnopaveet
360 (3 rows) & 120 each or 3 strings each of108 beads