Ahmad Shah Abdali in the year AH 1171 (AD 1757-58), came from the country of Kandahar to Hindastan, and on the 7th of Jumadal awwal of that year, had… - Ahmed Shahe Durrani

The Hindu Bethlehem now lay utterly prostrate before the invaders. Early at dawn on 1st March the Afghan cavalry burst into the unwalled and unsuspecting city of Mathura, and neither by their master's orders nor from the severe handling they received in yesterday's fight, were they in a mood to show mercy. For four hours there was an indiscriminate massacre and rape of the unresisting Hindu population - all of them non-combatants and many of them priests.' Idols were broken and kicked about like polo-balls by the Islamic heroes. Houses were demolished in search of plunder and then wantonly set on fire. Glutted with the blood of three thousand men, SardAr JahAn Khan laid a contribution of one lakh on what remained of the population and marched away from the smoking ruins the same night.
'After the tiger came the jackal. 'When after the massacre Ahmad ShAh's troops marched onward from MathurA, Najib and his army remained there for three days, plundered much money and buried treasure, and carried off many beautiful females as captives.' The blue waves of the Jamuna gave eternal repose to such of her daughters as could flee to her outstretched arms; some other happy women found a nearer escape from dishonour by death in their household wells. But for those of their sisters who survived there was no escape from a fate worse than death. A Muslim eyewitness thus describes the scene in the ruined city a fortnight later. 'Everywhere in the lanes and bazaars lay the headless trunks of the slain and the whole city was burning. Many buildings had been knocked down. The water of the Jamuna flowing past was of a yellowish color, as if polluted by blood. The man [a Muslim jeweller of the city, robbed of his all and fasting for several days] said that for seven days following the general slaughter the water had turned yellow. At the edge of the stream I saw a number of huts of vairAgis and sannyAsis [i.e., Hindu ascetic], in each of which lay a severed head with the head of a dead cow applied to its mouth and tied to it with a rope round its neck.'
'Issuing from the ruins of MathurA, JahAn Khan roamed the country round, and plundering everywhere as directed. VrindAvan, seven miles north of MathurA could not escape, as its wealth was indicated by its many temples. Here another general massacre was practised upon the inoffensive monks of the most pacific order of Vishnu's worshippers (c. 6th March). As the same Muhammadan diarist records after a visit to VrindAvan: 'Wherever you gazed you beheld heaps of the slain; you could only pick your way with difficulty, owing to the quantity of bodies lying about and the amount of blood spilt. At one place that we reached we saw about two hundred dead children lying in a heap. Not one of the dead bodies had a head.' The stench and effluvium in the air were such that it was painful to open your mouth or even to draw breath.'...

Ahmad Shah greatly desired to subdue the Sikhs, and his army attacked and gained control of the Sikh's holy city of Amritsar, where he brutally massacred thousands of Sikh followers. Not only did he viciously demolish the sacred temples and buildings, but he ordered these holy places to be covered with animals blood as an insult and desecration of their religion.

It was an extraordinary display! Daily did this manner of slaughter and plundering proceed. And at night the shrieks of the women captives who were being raped, deafened the ears of the people…All those heads that had been cut off were built into pillars, and the captive men upon whose heads those bloody bundles had been brought in, were made to grind corn, and then their heads too were cut off. These things went on all the way to the city of Agra, nor was any part of the country spared.