BTL (below the line) marketing involves direct engagement with customers to build brand awareness or drive sales through promotions. It allows for personalized messaging and is commonly used for tangible products. BTL is highly measurable and provides insights into return on investment. Rural BTL includes on-ground activations, merchandising, exhibitions and seminars while urban BTL focuses on promotions. Hiring a BTL agency provides scalability, simplicity, measurability and cost savings.