The course for the private pilot licence (PPL) is designed with certain minimums you must meet both ground classes (theory) and flying hours (practical). According to the info provided by PILOT CET in India the usual timeframe to complete the PPL course is 6 to 12 months.
Student performance and pace: If you learn quickly grasp theory well and progress smoothly in flying hours you may finish closer to the 6 month side.
Availability of aircraft & instructors: If the flying school has enough aircraft and instructors training moves faster otherwise delays add up.
Weather & airport conditions: Poor weather or busy airspace can disturb scheduled flights extending the time.
Flying hours requirement: You must complete the mandated number of hours in the air if some sessions get cancelled or postponed finishing takes longer.
Ground classes & exams: You also need to clear your exams check rides medical clearance etc. Any delay in scheduling these will push the finish date.
Choose a flying school that has good aircraft/instructor availability and minimal waiting for slots.
Be consistent: fly regularly rather than in scattered chunks continuity helps learning and builds momentum.
Stay on top of your theory studies so you can pass ground exams on first attempt and move quickly into flying.
Monitor weather forecasts and plan slots accordingly being flexible helps avoid cancellations.
Keep your medical certificate and documentation ready to avoid administrative delays.
you're looking at about 6 to 12 months to finish your PPL course in India if things go smoothly. It's entirely possible to complete on the shorter side if you're dedicated and the school is well organised. If you run into scheduling weather or aircraft issues it may take up to a year or slightly more. By planning and staying proactive you can aim for the faster end of the spectrum and start enjoying flying sooner.