Sales forecasting is the manner of estimating future sales. Accurate income forecasts allow retailing market to make knowledgeable enterprise choices and predict non permanent and long-term performance. Sales forecasting helps a retailer to estimate its predicted future revenues for income made in a precise duration of time. Hence the time plays a significant role in Sales forecasting. Technically, a time sequence is a sequence of information factors indexed in time order

Keywords : Sales Forecasting, Time series, ARIMA Model, Gradient Descent and Random Forest Algorithm.