Think in classes first, names second. Agni is the long strategic ballistic family; Prithvi sits shorter; BrahMos is the cruise missile everyone recognises; Akash is surface-to-air. Exact published ranges shift with variants - learn the order of magnitude, not a fake precision number from a random handout.
- Ballistic - lofted trajectory (Agni, Prithvi families).
- Cruise - powered flight in the atmosphere (BrahMos).
- Air defence - Akash and related SAM layers.
- SLBM / SSBN link - sea leg of the triad via Arihant-class boats under the SFC architecture.
If a question gives a range band, classify first (SRBM / MRBM / IRBM / ICBM-class), then match the family.