Appreciation post and some tips
Got my Japan visa yesterday and firstly wanted to thank all the folks on this sub for all of the advice/info/knowledge. It was super helpful!
Sharing a few things I learnt through this experience that might help you in your visa application process.
Keep your cover letter and itinerary clean and precise. Don't add too many unnecessary details if your application is a standard one. Of course if there are things you need to explain about your employment, bank statement etc then add that but otherwise stick to what is required.
Only add documents that are required. I tried adding a bunch of things like extra financials, extra payslips etc but Vfs explained that the visa officers will only look at the required list of documents.
If you are in a location that requires an appointment, start looking for Visa slot 60-45 before your date of travel. In my case the earliest Vfs slot I got in Bangalore was 20 days after the day I started searching. Also you can show up to Vfs super early but it won't really help since they won't let you enter 5 mins before your allotted time.
Let me know if you guys have any questions. Happy to answer!