RTD Drink Formulation

My goal is to launch a shelf-stable, ready-to-drink beverages.I am Looking for formulation:1 Mocktails (non carbonated) with manual filling and 6 month shelf life.Addittional Formulation to make it carbonated without using co2 or any machinery... (Budget: ₹600 - ₹1500 INR, Jobs: Chemical Engineering, Engineering, Food Safety, Manufacturing, Market Research, Mechanical Engineering, Microbiology, Packaging Design, Product Development)