This document discusses Bisleri's PET bottle supply chain and options to make or buy bottles. It provides an overview of the PET bottle industry, manufacturing process, and costs associated with in-house bottle production equipment versus outsourcing. Integrating bottle production could reduce costs, increase control over inputs, and create barriers to entry for competitors, but maintaining production in-house is more expensive at Rs. 4-5 per bottle compared to outsourcing for 80 paise. An decision must consider costs as well as opportunities for differentiation and expanding competencies.