Point 30 (Sp-l O) :
Draw a horizontal line passing through upper border of
knee-cap. Draw a vertical line passing through the inner
border of knee-cap.
From the junction (crossing) of these two lines move
two thumb-widths upward to reach point 30.
Point 31 (Sp-15) :
This point lies four thumb-widths to the either side of the
navel.