The truth is both India and Pakistan had a majority culture that was desi. There are two manifestations of this desi culture, the Muslim iteration and the Hindu iteration. Sort of two sides of the same coin. This desi culture was native to South Asia and was backward, traditional, supersitious, narrow minded, bigoted, averse to change. This backwardness [desi] had largely dominated South Asia with millions living in poverty and ignorance, generation after generation entirely uneffected by who was ruling them. Moghuls, British etc.
However in the latter part of British rule a small sliver of South Asians were co-opted and educated in the ways of modern world by British. This small group of people would go onto form the elite in both Muslim and Hindu communities. Men like Jinnah, Nehru, Iqbal, Gandhi were all products of British rule. They were 'brown sahibs'. After 1947 this group too over in Pakistan and India.
Nehru gave india it's British influenced Indian state. With some exceptions so did Pakistan. However under this thin layer of "gora sahibs" the vast ocean of desi masses continued living untouched by the loft ideas imbibed by their rulers. By 1970s changing face of Pakistani society mean't the "desi mass" began to bite the rule of "gora sahibs" by insisting their desi culture being incorporated by the state. Bhutto had felt this change and began to sing the songs of the "desi mass" even when he was not one. Bhutto's agreement to making Ahmedi's a class apart was the triumph of "desi mass" in Pakistan who impulse was cloaked as "Islam". That process only picked speed in 1980s and it reached it's climax in 2010s. However I believe the "desi mass" is now in retreat as the new generation wants benefits of modern world.
In India the "desi mass" is of course articulated as Hinduism. Hindutva is the face of "desi mass" in India. The majority in India have been slow on the take and allowed "brown sahibs" to prevail over the state but over the last two decades they have began to make their pressure felt. Ayodha and Gujrat massacre are analogous to the anti-Ahmedi actions in Pakistan of 1970s.
I think the reason was the "desi mass" has been slow in India is down to economics. India over the decades lagged behind Pakistan and most of the "desi mass" were locked in grinding poverty. Now trickle down economics and increasing urbanization will see Indian "gora sahibs" drowned out. Expect lot of chaos in India over next two decades.
@Joe Shearer @Nilgiri @OsmanAli98