The patachitra when painted on cloth follows a traditional process of preparation of the canvas. First the base is prepared by coating the cloth with the soft, white, stone powder of chalk and glue made from tamarind seeds.
This gives the cloth tensile strength and a smooth, semi-absorbent surface, allowing it to accept the paint. The artist does not use a pencil or charcoal for the preliminary drawings. It is a tradition to complete the borders of the painting first. The painter then starts making a rough sketch directly with the brush using light red and yellow. The main flat colors are applied next; the colors used are normally white, red, yellow, and black. The painter then finishes the painting with fine stokes of black brush lines, giving the effect of pen work.
When the painting is completed it is held over a charcoal fire and lacquer is applied to the surface. This makes the painting water resistant and durable, besides giving it a shining finish. The materials used in the paint are from vegetable, earth, and mineral sources. Black is made out of lampblack, yellow from haritali stone, and red from hingal stone.
White is prepared from crushed, boiled, and filtered shells. The subject matter of the patachitras include religious, mythological, and folk themes. Krishna leela and Lord Jagannath are important motifs.