First of all measure all the ingredients.

Mix the dry ingredients first..then add oil,yogurt

Knead them until uniform dough is formed

Keep it covered n set aside for 2-3 hours..then make balls n flatten them.

Preheat the tawa meanwhile...apply water on the back side of flattened nan and sesame seeds or kalonji whatever you like from top.

Put from wet side on hot tawa n let the bubbles appear.

Turn tawa upside down n heat on stove

Detach from tawa..and grease. with butter.. yummiliciious butter naan is ready