No there is generally no strict time limit by which you must finish all the required hours for a private pilot license. You can take breaks stretch your training or complete your flight hours over months or even years as long as you remain fit valid in your medical and maintain currency per the regulations of your aviation authority.
However there are a few practical conditions and caveats to be aware of in the private pilot license training requirements and ppl license requirements which can affect how long your training remains valid.
Flexibility in training pace: Flight schools expect that students will progress at their own pace. Many students complete private pilot license flight requirements over 6 to 12 months others may take longer.
No expiry of logged hours: The hours you already log (solo dual cross country) do not expire unless there is a major regulation change or your license application becomes invalid for unrelated reasons.
Medical certificate validity: You must keep a valid medical certificate while training. If your medical lapses you may have to renew it before continuing training under the private pilot license requirements.
Currency & proficiency: Even after you earn your license you'll need to stay current (e.g. recent takeoffs/landings refresher flights) to legally carry passengers. If too much time passes without flying you may need refresher training but that does not nullify your logged hours toward the requirements to get private pilot license.
Regulation updates: Sometimes aviation authorities change rules. If ppl license requirements change, you may need to meet the new rule for the remaining hours.
School policies: Some flying schools may require you to restart some training if you pause for years, to ensure you are safe and current.
Application time limits: In some jurisdictions your theory exams or flight tests may expire after a certain period meaning you'd need to re take them if you delay too much.
Medical fitness: You must remain medically cleared throughout the training period.
while there is no fixed deadline laid out in typical private pilot license requirements hours it s wise to keep continuity in your training maintain your medical eligibility and check whether your local aviation authority or flying school imposes any deadlines or validity periods. If you like I can check India's DGCA rules specifically for time limits would you like me to look that up