"Lachha" = "layers"
1. Make chapati dough
2. Take double-chapati-sized ball, roll out
3. Put oil/butter/ghee on top, sprinkle wheat flour.
4. Fold like an accordion, then roll into a spiral and tuck tail under. Looks like a cinnamon bun. Then roll out again.
5. Cook on a dry pan on both sides. Then add oil, and cook on both sides.

Source: Nisha at Taste of India cooking class, McLeod Ganj, India