Do guinea pigs eat chapati

No, rabbits don't eat prepared human foods, or commercial human foods.

Rabbits only eat commercial rabbit food (pellets) and fresh whole foods like hay, fresh leafy greens, and fresh fruit and vegetables as a treat.

Rabbits don't eat any meat, animal products or bi-products, diary products, animal fats (including butter), etc. Rabbits don't dried spices, either, or spicy foods.

See the related question below about the proper rabbit diet.