In a large bowl stir together flour, salt, kalonji, cumin seeds, avocado, gram masala, chili powder, armchoor powder and 1 ½tablespoon of oil.
Slowly add water until a soft dough forms. Knead, until smooth and elastic dough similar to chapathi forms, it takes about 15 minutes.
Form dough into a ball and coat with ½ tablespoons oil in a bowl. Cover bowl with plastic wrap and let dough stand at warm room 20 minutes.
Divide dough into 14 equal pieces and, keeping remaining pieces covered with plastic wrap. Roll out each piece into a round approximately 6 inches in diameter.
Heat a dry large cast-iron skillet or griddle over medium heat until hot, cook chapathi, turning once, until puffed and browned in spots, 30 seconds on each side. Transfer to a plate .Roll out and cook 13 more chapathi, stacking them on plate.