My passport expires on 21?
According to the FAQ provided in Passport Seva, Ministry of External Affairs, Government of India website, You can apply for a re-issue of passport up to 1 year before the expiry or within three years after the expiry of the existing passport without fresh police verification, provided there is no change in personal particulars and there is clear police report with respect to your previous passport and there is no adverse entry in the system. You can also apply for re-issue of passport if your previous passport expired more than three years ago, but fresh police verification would take place. Note: Under FAQs Please check Q45 Reference link: Passport Seva Services | Passport Seva Questions | Passport Doubts