Why are pastas served with garlic breads?
It must be some kind of American tradition, like how most pizza restaurants have a salad bar, or serving ground beef in a hard tortilla shell and calling it a “taco.” If you go to an Italian restaurant that is even the slightest bit authentic (even Olive Garden!) they serve pasta alone, although they may offer garlic bread as a side dish. I’ve only seen garlic bread served alongside pasta dishes at cheap pizza restaurants, at American-style diners, and in American home kitchens. Edit: I just saw that you are in India, not America. I’m not familiar with Italian foods served in India, so take whatever I said with a big grain of salt.