BharatNotes What is Drone (UAV) Classification?
A drone, or Unmanned Aerial Vehicle (UAV), is an aircraft that flies without a human pilot on board. Together with its ground control station and communication links it forms an Unmanned Aircraft System (UAS). Classification organises this diverse family of aircraft so that regulation is proportionate to risk. India's framework is set by the Drone Rules, 2021, notified by the Ministry of Civil Aviation on 25 August 2021, which apply to drones with a maximum all-up weight (MAUW) of up to 500 kg (raised from the earlier 300 kg limit).
Classification by Weight
Under the Drone Rules, 2021, drones are grouped by MAUW — the combined weight of the drone, battery and payload. This category drives the level of compliance required.
| Category | Maximum all-up weight (MAUW) |
|---|---|
| Nano | Up to 250 g |
| Micro | Greater than 250 g and up to 2 kg |
| Small | Greater than 2 kg and up to 25 kg |
| Medium | Greater than 25 kg and up to 150 kg |
| Large | Greater than 150 kg |
Lighter categories face the lightest touch — a Nano drone needs no remote pilot certificate, and no type certificate is required for a Nano UAS or a model RPAS.
Classification by Function
The Rules also divide unmanned aircraft into three functional subsets:
- Remotely piloted aircraft system (RPAS) — controlled by a remote pilot from a ground station.
- Autonomous unmanned aircraft system — operates without pilot intervention during flight.
- Model remotely piloted aircraft — MAUW up to 25 kg, flown within visual line of sight for educational, research, recreational or testing use only.
Airspace Zones
Classification of the aircraft is paired with classification of airspace. India's drone airspace map, released on the Digital Sky platform on 24 September 2021, divides the country into three zones:
- Green Zone — generally airspace up to 400 ft outside controlled areas; no prior permission needed.
- Yellow Zone — controlled airspace; requires permission from the relevant air-traffic authority. The yellow zone around airports was cut from 45 km to 12 km.
- Red Zone — "no-drone" areas where operation needs Central Government authorisation.
Significance and Current Status
The liberalised regime slashed the number of forms from 25 to 5 and abolished several approvals. The Drone (Amendment) Rules, 2022 (notified 11 February 2022) further removed the requirement for a drone pilot licence for certain operators. To boost domestic manufacturing, the government notified a Production Linked Incentive (PLI) scheme on 30 September 2021, offering total incentives of ₹120 crore over three financial years to drone and drone-component makers. Security features such as No Permission–No Takeoff (NPNT) are built into the framework.
UPSC Angle
For Prelims, memorise the five weight bands, the three functional subsets, and the green/yellow/red zone logic, plus the role of the DGCA and Digital Sky. For Mains GS3, link UAV classification to indigenous defence production, agricultural drone use, disaster management, and the dual-use security challenge of drones along India's borders — a recurring science-and-technology theme.
