The CPL course duration includes both theoretical (ground) training and flying training duration under DGCA rules. While ground classes may take 3-6 months you must also complete practical flying hours. The full duration of CPL course is usually 12-18 months depending on factors such as institute schedule weather exam results and aircraft availability.
Several things influence how long the cpl training duration actually takes:
Weather conditions (monsoons fog etc.) can limit flying days.
Aircraft and instructor availability. If there’s a backlog training slows.
How quickly a student clears ground exams medical certification delays and performance in flying.
to satisfy the cpl course duration rules you must fly at least 200 hours with specific minimums in solo dual night cross country and instrument flying. With favorable conditions this plus ground training means the duration of CPL course is about 12-18 months.