Think of trying to solve a jigsaw puzzle in which 30% to 50% of the pieces are missing, and you have no border pieces at all. The best you can do is … - Richard Maxwell Eaton

[T]he demonization of Mahmud and the portrayal of his raid on Somnath as an assault on Indian religion by Muslim invaders dates only from the early 1840s. In 1842 the suffered the annihilation of an entire army of some 16,000 in the (1839-42). Seeking to regain face among their Hindu subjects after this humiliating defeat, the British contrived a bit of self-serving fiction, namely that Mahmud, after sacking the temple of Somnath, carried off a pair of the temple's gates on his way back to Afghanistan. By 'discovering' these fictitious gates in Mahmud's former capital of Ghazni, and by 'restoring' them to their rightful owners in India, British officials hoped to be admired for heroically rectifying what they construed as a heinous wrong that had caused centuries of distress among India's Hindus. Though intended to win the latters' gratitude while distracting all Indians from Britain's catastrophic defeat just beyond the Khyber, this bit of colonial mischief has stoked Hindus' ill-feeling toward Muslims ever since. From this point on, Mahmud's 1025 sacking of Somnath acquired a distinct notoriety, especially in the early twentieth century when nationalist leaders drew on history to identify clear-cut heroes and villains for the purpose of mobilizing political mass movements. By contrast, Rajendra Chola's raid on Bengal remained largely forgotten outside the Chola country.

Although we often hear the rather glib assertion that medieval Indian Sufis were primarily responsible for converting Hindus to Islam, the issue has not been at all closely examined. (...) In sum, the Warrior Sufi may be seen as one of the earliest products that arose from the contact between Arab Islamic and Indie civilizations. In their psychological appeal, philosophical underpinnings, and historical development, these two civilizations are diametrically opposed. Where the one is ardent, dogmatic, and austere, the other is reflective, syncretic, and sentimental. Where Arab Islam centers upon the submission to a single discipline and perceives society, the universe, and the divine principle in terms of unity, Indie Hinduism diffuses into an elusive aggregate of metaphysical systems, folk beliefs, customs, symbols, and traditions that collectively perceive society, the universe, and the divine principle in terms of plurality. By the early fourteenth century the Arab Islamic and Indie traditions had only just begun their long and tortuous process of fusing into what later was to become “Indian Islam.” Hence the Warrior Sufi did not represent a synthesis of the Islamic and Indie traditions, but only a transplant of the former into the world of the latter. (...) More than that, the phenomenon of Sufis using their prestige to lead, or as was more likely the case, to legitimize a jihad spelled the ultimate breakdown of relations between landed Sufis and non-Muslims. There is no record of any landed or orthodox Sufi in the kingdom at this time urging the policy of “peace with all” ( suhl-i kitll), a slogan that many writers have attributed to Indian Sufis generally. (...) Some of [the Sufis of Bijapur] wielded a sword, others a pen, others a royal land grant, and still others a begging bowl... Some were orthodox to the point of zealous puritanism, others unorthodox to the point of heresy. Indeed, this study demonstrates that the stereotyped conception of medieval Indian Sufis as pious and quietistic mystics patiently preaching Islam among Hindus is no longer valid. It is simply not possible to generalize about the Sufis of medieval Bijapur, much less of India as a whole, as any unitary group relating in any single or predictable way to the society in which they lived. They clearly played a variety of social roles.

Ironically, one of the few things that Indian and Pakistani textbooks seem to agree on is in fact a falsehood: namely, that Islam grew in precolonial India through the agency of Sufi saints. There is little contemporary evidence for such a thing. Generally speaking, Sufis were not interested in converting Hindus.