Directorate General of Civil Aviation (DGCA) Practice Test 2026 - Free DGCA Practice Questions and Study Guide

ENR, short for En-route, provides the information you need to plan and fly the route between airports. It covers how airspace is arranged along a flight path and the designated air traffic service (ATS) routes that aircraft follow, along with the related route segments and navigation facilities you’ll rely on while en route. That focus on airspace structure and ATS routes is exactly what ENR holds.

Aerodrome data belongs in the aerodromes (AD) section, national regulations under regulatory/gen sections, and NOTAM procedures are published in NOTAM-related materials. So the en-route topic of airspace and ATS routes is the correct match.