My Puzzel version - 1
Here comes two of my versions of Rajammaji's puzzle after mergeing the units joined at the corner points. Done just with basic MSPaint. Slightly gave a curve to make the pinwheel different. Hope to try sometime in real with kolapudi.
The dot grid 16 X 16 - remove extra dots or
16 - 4 lines and then decrease in steps to reach 4 on each side.