Hindu and Muslim can never Unite, If that possible they would have join before 1947 partition, Its called Two nation theory.
Muslim Rule over the subcontinent more than 800 year, And then British came and Muslim rule was over, And British rule was started. FIRST THE Indian were Under the MUSLIM and then Under the BRITISH rule. They have no problem. Muslim has the problem because they are the ruler, and rulers are now treated as slaves.
Irfan, I am going to make an insult/Joke about you and your country please dont take it seriously & be a sport.
Seriously which school did your parents sent you that your brain is so thoroughly washed - with some form of detergent - that you are actually calling a British India Map the Muslim India map ?? Please get your facts right. Please read on..
Get your hands & feet together folks I see an Indo Pak war coming. There is no Hindu there is no Muslim its plain and simple INDIAN.
In the ancient times people lived near the now dried up vedic Saraswati they werent Hindu, they didnt have rules, they didnt follow any other civiliztions but were expert traders.
Then we were part of the Haryanks and in a broader picture the Mahajanapads, the greatest empire of these 'Janapads' = Realm of the People ? It was the Magadh empire.
Then came the persians and the greeks, who returned back to their abodes when they were faced with the sheer logistical challenges of a military conquest in this peninsula.
Then throughout the classical age India was the land of the people whose majority were Hindu, and by majority I would say above 90%
It was during this classical time when the Mauryas rose & fell and with them spread the wings of India all across the south of Asia.
It was during this time when the age old tradition of cultivating wheat and the expanding wheat - farm lands spreading to the East and the west at an exponential rate; that the name 'Sone Ki Chirya' (The Golden Bird) was coined to India.
It wasnt until the early half 5th century, when the White Huns lead by Toramana invaded the North of Pakistan through the Afghan mountains, that Islam or any form of islam was introduced here. It was a short lived reign but converted enough Hindus to other religions like Tengri & Manichaeism, it basically opened up the possibility of conversion of Hindus to other religion which wasnt possible until now..
Much later in the 7th Century when Sindh (today's pakistan) was conquered by an invading Umayyadi Meccan army followed by the death of Muhammad. But even then this was isolated to the Northern part of the peninsula. While the rest of India was entering the late classical era, during which India and it's cultural influence spread further south east down through Sumatra and Indonesia.
The small muslim kingdoms formed during the Umayyadi crusades in the north were part of the Meccan caliphate but it's rulers were too unequipped to invade the rest of India.
Lets face it, Islam is the best religion for barbarian central asian tribes, who were among the early adopters of the religion. They could eat almost anything, they could have many wives, they got rid of the need of idols, anyone anywhere could just curl up and claim to be in a 'holy place' - which is good if you are a nomad and have no fixed place to live. Multiple wives just increases the reproduction efficiency and most importantly they could take anything from anyone because according their 'trollbook' the whole world is theirs to pillage.AND they've been so successful at this craft of pillaging that they eventually dared to get into the heart of Delhi (Old Delhi) by the beginning of the 13th century and eventually set up the muslim rule in India by converting the general population into their own religion of Islam.
But this was for 300 years not 800 The french, the Spanish the Portuguese and the Dutch started arriving by the 16th century and by the 17th Century the Britts.
In a way the britts were the first political unity this peninsula had seen in a long time.
But we shouldnt forget one fact. Religion is stupid. It is fake, it is a form of mind control, a form of herding the sheep. That sheep is the common man, every religion had one agenda and no it was not 'peace', it was the illusion of peace through fear and subjugation.Hindu, muslim, sikh, Buddhists, Jains, Tengris (lol) all are and were ALWAYS Indians.
They just started believing in different imaginary concepts at different points in time thats all.
I get it how pathetic the common man in Pakistan today must feel that the founder of their country was nothing more than a delusional hateful old man, yes I m talking about Jinnah. Its high time my ancestral brothers stopped living in another man's delusion.
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though none intended. 
