After his return the King proceeded to reduce the fortress of Dewurconda, strongly situated on the top of a hill, which after a long siege was taken,… - Mohammed Qacim Ferichta

In 1018 CE Mahmud attacked the holy town of Mathura, the land of Lord Krishna, considered one of the richest in the northern belt, after the abject surrender of the Gurjara Pratihara ruler Rajyapala. Just to give an idea of the amount of loot that Mahmud managed to ship back to Ghazni during each of his plunders of India, this is the account of his campaign in Mathura by Ferishta:
It is said that the Sultan found in Muttra [Mathura] five great idols of pure gold, with eyes of rubies, each of which eyes was worth fifty thousand dinars. Upon another idol, he found a sapphire, weighing four hundred miskal; and the image being melted down, produced ninety eight thousand three hundred miskal of pure gold. Besides these, there were above a hundred idols of silver, which loaded a hundred camels with bullion. The Sultan having tarried here twenty days, in which time the city suffered greatly from fire, besides what it suffered from the hand of ravage and desolation, he marched against the other fortified places in these districts …

Mahmood Shah's next effort was against the port of Jugut, with a view of making converts of the infidels, an object from which he had been hitherto deterred by the reports he received of the approaches to it…""The King, after an arduous march, at length arrived before the fort of Jugut a place filled with infidels, misled by the infernal minded bramins… The army was employed in destroying the temple at Jugut, and in building a mosque in its stead; while measures, which occupied three or four months in completing, were in progress for equipping a fleet to attack the island of Bete…"

…The Dehly army, arriving before Gualiar, invested the place… After the siege had been carried on for some months, the army of Ibrahim Lody at length got possession of an outwork at the foot of the hill, on which stood the fort of Badilgur. They found in that place a brazen bull, which had been for a long time an object of worship, and sent it to Agra, from whence it was afterwards conveyed to Dehly, and thrown down before the Bagdad gate (AH 924, AD 1518).