A Commercial Pilot License for Aircraft (CPL A) grants legal authorization to operate fixed wing aircraft commercially but does not extend that privilege to helicopters, as aviation licenses are category specific. To fly helicopters professionally, you must obtain a separate Commercial Pilot License for Helicopters (CPL H). This involves dedicated ground training and flight instruction in rotary wing aircraft airplane training alone is insufficient and not transferable for rotary wing operations.
Fortunately routes are available for fixed-wing CPL holders to transition to helicopters. In India for instance the Pawan Hans conversion scheme offers a structured 3–6 month program providing necessary helicopter flying and type conversion training, culminating in CPL-H qualification and helicopter endorsement on your license Similarly international authorities like the UK’s CAA require separate training hours and exams exclusively for CPL-H, underscoring that conversion always entails additional certification not a simple license crossover.