How are you so sure about august end and sep?1. No there is no impact on your current file process. You don't have yo inform IRCC
2. If your PR approve while you are in India all your current visas will automatically expire and you have to apply for PRTD (Permanent Resident Travel Document) - https://www.canada.ca/en/immigration-refugees-citizenship/services/application/application-forms-guides/application-permanent-resident-travel-document.html
My personal advice is please wait till August-end or September first week, you don't want to be stuck in India for 3-4 months after your PR is approved.