Timur (Chagatai Turkic: تیمور Tēmōr, "iron") (1336 – 19 February 1405), among his other names[1], he is commonly called as Tamerlane

Indian Campaign

Informed about civil war in India, Timur began a trek starting in 1398 to invade the reigning Sultan Nasir-u Din Mehmud of the Tughlaq Dynasty in the north Indian city of Delhi. He invaded India on the pretext that the Muslim Delhi Sultanate was too tolerant and soft toward its Hindu subjects.
Timur crossed the Indus River at Attock on September 24. The capture of towns and villages was often followed by the looting, massacre of their inhabitants and raping of their women, as well as pillaging to support his massive army. Timur wrote many times in his memoirs of his specific disdain for the 'idolatrous' Hindus, although he also waged war against Muslim Indians during his campaign.
Timur's invasion did not go unopposed and he did meet some resistance during his march to Delhi, most notably with the Sarv Khap coalition in northern India, and the Governor of Meerut. Although impressed and momentarily stalled by the valour of Ilyaas Awan, Timur was able to continue his relentless approach to Delhi, arriving in 1398 to combat the armies of Sultan Mehmud, already weakened by an internal battle for ascension within the royal family.
The Sultan's army was easily defeated on December 17, 1398. Timur entered Delhi and the city was sacked, destroyed, and left in ruins. Before the battle for Delhi, Timur executed more than 100,000 captives, mostly Hindus.
Timur himself recorded the invasions in his memoirs, collectively known as Tuzk-i-Timuri. In them, he vividly described the massacre at Delhi:
In a short space of time all the people in the fort were put to the sword, and in the course of one hour the heads of 10,000 infidels were cut off. The sword of Islam was washed in the blood of the infidels, and all the goods and effects, the treasure and the grain which for many a long year had been stored in the fort became the spoil of my soldiers. They set fire to the houses and reduced them to ashes, and they razed the buildings and the fort to the ground….All these infidel Hindus were slain, their women and children, and their property and goods became the spoil of the victors. I proclaimed throughout the camp that every man who had infidel prisoners should put them to death, and whoever neglected to do so should himself be executed and his property given to the informer. When this order became known to the ghazis of Islam, they drew their swords and put their prisoners to death.
One hundred thousand infidels, impious idolaters, were on that day slain. Maulana Nasiruddin Umar, a counselor and man of learning, who, in all his life, had never killed a sparrow, now, in execution of my order, slew with his sword fifteen idolatrous Hindus, who were his captives….on the great day of battle these 100,000 prisoners could not be left with the baggage, and that it would be entirely opposed to the rules of war to set these idolaters and enemies of Islam at liberty…no other course remained but that of making them all food for the sword.
As per Malfuzat-i-Timuri, Timur targeted Hindus. In his own words, «Excepting the quarter of the saiyids, the 'ulama and the other Musalmans, the whole city was sacked». In his descriptions of the Loni massacre he wrote,»..Next day I gave orders that the Musalman prisoners should be separated and saved.»
During the ransacking of Delhi, almost all inhabitants not killed were captured and enslaved.
Timur left Delhi in approximately January 1399. In April he had returned to his own capital beyond the Oxus. Immense quantities of spoils were taken from India. According to Ruy Gonzáles de Clavijo, 90 captured elephants were employed merely to carry precious stones looted from his conquest, so as to erect a mosque at Samarkand – what historians today believe is the enormous Bibi-Khanym Mosque. Ironically, the mosque was constructed too quickly and suffered greatly from disrepair within a few decades of its construction.