**Meal Plan**

**Breakfast (18% of 2697 calories = 485 calories):**
- Banana (120g, 105 calories)
- Apple (150g, 80 calories)
- Chicken (150g, 230 calories): 
- Watermelon (200g, 60 calories): 
    - Total: 475 calories, 10 calories below target. 

**Lunch (28% of 2697 calories = 755 calories):**
- Prawn Biryani (350g, 755 calories): 
    - Total: 755 calories, on target.

**Dinner (14% of 2697 calories = 378 calories):**
- Chicken Mac (250g, 378 calories):
    - Total: 378 calories, on target.

**Snacks (25% of 2697 calories = 674 calories):**
- Watermelon (2kg, 600 calories)
- Almonds (30g, 74 calories)
    - Total: 674 calories, on target.

**Grand Total:**
- Overall calories: 2282 calories.
- Macronutrient distribution: Carbohydrates 60%, Protein 25%, Fat 15%.

Note: As the calorie total is short by 415 calories, increase the portion size of the Banana, Apple, and Chicken in the breakfast. Add more almonds to the Snacks to reach the total calorie target of 2697.

**Grocery List:**
- Banana (for Breakfast)
- Apple (for Breakfast)
- Chicken (for Breakfast) and (Chicken Mac for Dinner)
- Watermelon (for Breakfast and Snacks)
- Prawns (for Prawn Biryani in Lunch)
- Biryani Rice and spices (for Prawn Biryani in Lunch)
- Macaroni and cheese (for Chicken Mac in Dinner)
- Almonds (for Snacks)