When the little finger of the patāka hand is bent it is known as triśikha
it is used to indicate objects with three heads.
When the tip of the little finger of trisikha hand is touched with the tip of the thumb,
it denotes number six
[the same movement done with the tips of] the ring finger [and the thumb]
while number seven is indicated.
while number three is [to be denoted] by triśikha