Haha, no visa officer will be in this forum. I have been planning my sept 2019 intake from last year and got delayed because of education loan. I am a student like you.
If you applied online, then your application is already linked online. You should see in your application after you click on the messages, on top you will see list of submitted documents.
If they asked for IMM5707 then you are OK, if not then you will have to make a webform to the Bangalore visa office, and submit the IMM5645E along with the webform.
I am a student like yourself. While I applied in June 4th, they asked for IMM5645 and not IMM5707. If you don't attach the right documents, it will cause complications in your application. This can only be rectified by webform.