Heat mustard oil in a
non-stick pan till it reaches smoking point. Reduce heat, add achari masala and saute for a minute.
Take the pan off the
heat, let it cool down for 10 minutes.
Add hung yogurt to
this masala and mix well. Add chicken cubes and mix well and set aside to marinate for 1 hour.
Shred the lettuce and
soak them in a bowl chilled water.
Heat another non-stick
pan, add the chicken cubes and cook on medium heat for 8-10 minutes or till done.
Add garlic to softened
butter in a small bowl and mix well. Halve the buns and spread this butter on them. Heat yet another non-stick pan and toast the buns on it.
Place some lettuce on
each bun half, keep some achari chicken over it. Keep these buns on a serving platter, garnish with sprouts and serve immediately.