In a pot take oil and fry onions until golden brown, remove onions and dry excess oil on kitchen towel.
In same pot add cumin, black pepper, coriander and garlic. Fry to crackle for few seconds.
Pour in water and paya mix well.
Now add roti and cook until boiling.
Adjust salt according to taste and mix in green chili slices and lemon juice.
Garnish with boiled eggs , fresh coriander and fried onions.
Notes
As per thickness of paya gravy decide how much water should be added. Thickness and size of tandoori roti varies, I suggest add less or more roti accordingly.