Who will sign in the RC official in josaa IIT 2019 ?

Well, I'm assuming RC to be reprting centre

Actually girl, during your physical registeration, infact during mine registeration, documents submitted were signed by many professors and rightly so.

Professor, who checks your date of birth, your home state, your medical certificate, your even name, your board percentage all these things are signed by you and by yoru invigilater.

At the end, all these documents are uploaded on their computer by a senior professer, after that he signs and stamps a clearing chit and give it to you as a proof!

Hence, at the end their are many layers who sign the documents!

Thank You