You can’t claim a culture based on peripheral sites. Just like countries with peripheral sites of Egyptian culture can’t claim a percentage of ancient Egyptian. Just because the centrally located Egyptian culture built some settlements or towns in the periphery it doesn’t become a claim of those countries.we are NOT Claiming whole of IVC....we are only claiming the 40 percent sites like the largest port, largest escavated site, only chariots, only skeletons and DNA .....learn to read