` :::Unfortunately, the exact page is hidden in my Google Books preview. But that is not a problem, I am taking it on good faith. I am afraid you've missed my major point here. Lead should not contain non–trivial information which is not discussed in the body (per MOS:LEAD). Even when something is discussed in the body, the lead is still ``written at a greater level of generality than the body``. Basically, Proto–Dravidian, which is discussed at length in the article, doesn't find a mention in the lead, while the relationship between Indus script and Dravidian languages, which is so far not mentioned in the body, finds a place. Farmer, Rao etc. are not relevant right now, but if you plan on adding content pertaining to IVC, you will have to give alternate POVs some weight (not sure how much) unless they are fringe (which is probably not the case here).  `