Navratri is a festival that involves fasting for nine days, and during this time, people abstain from certain foods. The rules for Navratri fasting can vary depending on personal beliefs and traditions. However, there are some general guidelines on what to eat and what to avoid during this time. Here are some foods that are allowed during Navratri fast:

• Flour: Kuttu Atta, Singhare Ka Atta, Sama Chawal, Sago (Sabudana), Amaranth (Rajgira), Fox Nut Flour
• Vegetables: Potatoes, sweet potato, bottle gourd (lauki), arbi, pumpkin, spinach, bottle gourd, cucumber, carrots, and all kinds of fruits
• Spices: Sendha namak or rock salt, cumin, clove, cinnamon, dry mango powder (amchur powder), chaat masala, red chili powder, black salt (kala namak)
• Nuts and dry fruits: Walnuts, almonds, dates, pistachios, raisins, melon seeds (magaz), cucumber, peanuts, groundnut oil
• Dairy products: Milk, yogurt, paneer, coconut milk

Here are some foods that should be avoided during Navratri fast:

• Grains: Wheat, rice, semolina, maida, corn flour, oats, flaxseeds, chia seeds
• Legumes and pulses: Lentils, beans, chickpeas, kidney beans, black-eyed peas, etc.
• Meat products: Eggs, chicken, lamb, and any other non-vegetarian food
• Onions and garlic: They are considered as tamasic foods and must be excluded in your Navratri diet. Mushrooms, leeks, shallots should also be avoided
• Alcohol and processed food
• Turmeric (Haldi), Hing (Asafoetida), Garam Masala

It is important to note that fasting during Navratri is more about abstinence and detoxification, and the focus should be on consuming healthy foods with healthy thoughts. The idea is to detox your mind and body and reinforce your faith in the Almighty.