Around 3% of the Indus passes through India while around 2% of it also passes through China - so does that mean that China should start claiming the Indus Valley Civilization?
The Nile River passes through 11 countries, yet it's civilization is accredited to Egypt.
What kind of an absurd, uncorrelated and inapplicable example is that? Do you even know where the Indus is? or has your schools begin to teach you that it's a river in South India now.
That example should apply to you, not us. Just because you have a couple remains doesn't mean you can claim our civilization. The two most well known and main cities Harappa (Para Munda) and Mohenjodaro (Meluha), are all in Pakistan.
Where did they teach you this?