If by “punja” you mean Jain puja, a simple and respectful way to draw it is to make the Jain auspicious symbols first, especially the Swastika and, if desired, the Ashtamangal. Jains traditionally draw these with clean, pure materials, and the Swastika is central among the auspicious signs. ( jainknowledge.com)

Simple Jain puja drawing steps:

1. Use a clean white paper or a clean floor/plate space.
2. Draw a Swastika in the center.
3. Add three dots/heaps above it if you are following the common simplified Jain form, which represents right knowledge, right faith, and right conduct. ( jainknowledge.com)
4. If you want a fuller sacred arrangement, draw the Ashtamangal symbols as taught in Jain tradition. ( jainknowledge.com)
5. Keep the drawing neat, simple, and done with a pure mind, because in Jainism the inner भाव and श्रद्धा are important along with the symbol. ( jainknowledge.com)

If you meant drawing the Jain symbol itself, it includes the universe outline, Swastika, hand with Ahimsa, and the three dots above. ( jainknowledge.com)