Here's my timeline. I got slightly different updates then what people mentioned here if this helps anyone.
23.7.22 sent application by post. Submitted surrender documents and OCI together in the same post.
24.7.22 Australia Post tracking confirmation said it was received at VFS Melbourne centre)
27.7.22 Text mssg from VFS "Your application has been received and is under assessment
I applied via post so obviously didn't get any receipt. The VFS website mentions that you can track your application by putting in the reference number on the "receipt". VFS tracking said "No records found" for the entire process for me.
01.08.22 I was able to track my application reference on
Status-Enquiry. It said "under process"
05.09.22 I got a message from Australia Post that I have an incoming package from VFS Global (nothing from VFS, no text message etc.)
06.09.22 Received my cancelled Indian passport, certificate of surrender, and a EFTPOS receipt from comm bank for the passport surrender process
07.09.22 Text message "Your documentation has been dispatched by Post/Courier to your nominated address". Also got another mssg "The assessment of your aplication is now complete. If you have not chosen a courier return service, please visit our website for more information...". I actually called them to confirm whether they dispatched it or not because the statusEnqury website still said "under process".
08.09.22 statusEnqury website updated to "processed"
19.09.22 text mssg "your documentation has been dispatched by post/Courier to your nominated address"
20.09.22 received OCI with another EFTPOS receipt from comm bank
Hope this helps people who are applying