Indian science carries a black mark in the world. Here we have scientists, not presenting facts, but opinions without any research or evidence. This would not happen anywhere else in the world. I am willing to see evidence and make judgement based on that. But I know that there has been hardly any research on Indian ancient sites for 70 years, so how can any professional put their name on something that is speculation.
I have no problem in science facts defining history. I know that sites in Israel which have had more extensive research have not found all the evidence defined in the bible, but at least they try. For Indian scientists the job should be easier if the willingness was there, places and routes are better defined in The Ramayana. Let's carry out archaeological digs at the sites, and try and find evidence over the next 50 years or so. If no evidence is found, then make judgement - not now.