In a bowl add gram four, turmeric powder and salt. Mix well.
Add buttermilk slowly, take care of lumps.

Heat the pan, add mixted batter and keep stirring until it thickens.
Do not leave for even a minute.

Grease a plate with oil.
Cool the mixture a bit and apply it to plate.
Let it cool for 5mins and then cut it straight and roll it out.

For tempering heat oil, add mustard seeds, green chillies.
Add tempering on rolls and enjoy.