I don't think so. Anyway, I made a humble request. There is nothing binding on you to desist from insulting an entire community. Nothing physically binding, that is.
Presumably you are a good Muslim.
I am afraid that the name is precisely derived as
@SOUTHie says; Sapta Sindhu is the seven seas, not the seven rivers. A superficial knowledge of anything leads to errors and misconstructions. Sindhu was a generic term for very large body of water, and has been frequently used as a synonym for 'sea'.
He was wrong in calling it Sanskrit; it was older, and used as such in Indo-Aryan. Presumably such glib talk about Sanskrit and about corruption of Sanskrit might be based on some idea of the differences, or rather, the relationship between Indo-Aryan and Sanskrit.
Regarding your 'corruption', a lack of linguistic knowledge will lead to that second misleading conclusion. The shift between two branches of Indo-Iranian, the Iranian on the one hand and the Indo-Aryan on the other, was based on many things; the transition from the sibilant to the aspirate (or from the aspirate to the sibilant, depending on your location east or west of the great river) was one of the indicators. So, to explain by parallel example, the river Haraothi in Afghanistan became the Saraswati in India (the name Saraswati has been used in a large number of places for a river name in India, leading to utter confusion among the revisionists of the Hindu right wing, whose lack of elementary knowledge is only surpassed by the fundamental ignorance of green bhakts).
Sapta Sindhu became, as a result of this linguistically determined shift, Hapta Hindu. That started another string of transitions. There was yet another linguistic shift between Persian, an Indo-European language of the Satam stream, and Classical Greek, yet another Indo-European language, but one from the Centum stream. Another indicative linguistic shift was that the Greeks had no letter to express the aspirated sound; they had no 'h'. That is why, incidentally, many words derived from Greek, Latin or French, are preceded by the indefinite article 'an' rather than by 'a', thus, an hospital, an hotel, an history (from the Greek), but a host, a hotspot, a horse.
As a result of this linguistic shift, not corruption, the Greeks, who were present through the length and breadth of the Achaemenid Empire, pronounced the word Hindu as 'Indu', or, with their word-ending, 'Indika'.
The silliest and the most stupid part of the post, one which left me suspended between mirth and dismay, was the bombastic phrase that nobody knows Bharat, that it was due to the IVC that Sindh's name became famous. For your information and consideration, in the 5th Century BC, nobody knew that something called the IVC had existed. The last known settlements of the Indus Valley Civilisation were around the 14th century BC, some 900 years before; the settlements were already covered in several dozen feet of mud and dust. Alexander's armies passed that way in 326 BC, and the whole battalion of scholars, with their minute observation of ethnography, geography, sociology and military analysis, saw nothing like the IVC.
I really wish that this superficial political and ethno-religious point scoring could be eliminated as being equal to socially transmitted disease.
I have nothing to say to your concluding paragraph. If there can be such egregious mistakes on the simple subject that you mishandled in your opening paragraph, then it will be self-inflicted torture to read a paragraph that deals with the events of partition. I am not a masochist.
@SOUTHie
With a reminder that Indo-Aryan IS NOT Sanskrit; that Sanskrit had a determinate start and an author, a single author; that Sanskrit, an artificial creation, co-existed with Prakrit, a naturally descended group of languages across the length and breadth of north India, that belonged to two branches, the Suraseni, the source of all western Indian contemporary languages, and Magadhi, the source of all eastern Indian contemporary languages; and a suggestion that he should examine the striking resemblance between liturgical and sacerdotal Iranian, what is known as Avestan, and Indo-Aryan, as used in the older cycles of the Rg Veda.
Many people might not know what IVC is. Or if you ask them about Indus valley. That's absolute ignorant bunch. But still they would know the name Bharat. 
