Introduction to Logistics and Supply Chain Management
This domain sets the vocabulary the whole paper assumes: what logistics is, where it sits inside supply chain management, how flows of goods, information and money are described, and how Indian policy frames the sector. Expect definition-based questions and short comparisons rather than calculations.
Core definitions
- Logistics: the part of the supply chain that plans, implements and controls the efficient forward and reverse flow and storage of goods, services and related information between origin and consumption, to meet customer requirements.
- Supply chain management: the wider integration of procurement, operations, logistics and returns across partner firms, aligned to end-customer demand. Logistics is a subset of SCM, not a synonym.
- 3PL owns and executes assets such as trucks and warehouses. 4PL is an integrator that designs and manages the network, often owning few assets.
Service objective and cost trade-off
The 7 Rs (right product, quantity, condition, place, time, customer, cost) define service quality. Total cost thinking matters more than any single rate: cheaper freight can raise inventory and stockout costs. NCAER's 2022 study put India's logistics cost near 13-14% of GDP, against roughly 8-9% in developed economies, and the National Logistics Policy 2022 targets cost reduction plus a top-25 World Bank Logistics Performance Index rank by 2030. The LPI scores countries on six dimensions including customs, infrastructure and timeliness.
Worked example
Supplier A quotes ₹100 per unit with ₹4 freight and a 7-day lead time: landed cost ₹104. Supplier B quotes ₹88 but freight, duty and insurance add ₹18 per unit with a 45-day lead time: landed cost ₹106. B is dearer despite the lower invoice price, and the extra 38 days of pipeline inventory plus currency exposure widen the gap. The reasoning is always landed cost versus pipeline inventory, not headline price.
Traps that cost marks
- Writing that logistics is a wider discipline than SCM (it is narrower).
- Choosing the lowest freight quotation instead of the lowest total landed cost.
- Attributing the LPI to an Indian agency; it is published by the World Bank.
- Describing a 4PL as merely a 3PL that also rents warehouses.