In this year, that is AH 412, Sultan Mahmud learnt that the people of Hindustan had turned against the Raja of Qanauj' Nand, the Raja of Kalinjar att… - Mohammed Qacim Ferichta

…Mahmood Shah Shurky, having recruited his army, took the field again for the purpose of reducing some refractory zemindars in the district of Chunar, which place he sacked, and from thence proceeded into the province of Orissa, which he also reduced; and having destroyed the temples and collected large sums of money, returned to Joonpoor.

Ahmud Shah, without waiting to besiege the Hindoo capital, overran the open country; and wherever he went put to death men, women, and children, without mercy, contrary to the compact made between his uncle and predecessor, Mahomed Shah, and the Rays of Beejanuggur. Whenever the number of slain amounted to twenty thousand, he halted three days, and made a festival celebration of the bloody event. He broke down, also, the idolatrous temples, and destroyed the colleges of the bramins. During these operations, a body of five thousand Hindoos, urged by desperation at the destruction of their religious buildings, and at the insults offered to their deities, united in taking an oath to sacrifice their lives in an attempt to kill the King, as the author of all their sufferings…

'In the year AH 402 (AD 1011), Mahmood resolved on the conquest of Tahnesur [Thanesar (Haryana)], in the kingdom of Hindoostan. It had reached the ears of the king that Tahnesur was held in the same veneration by idolaters, as Mecca by the faithful; that they had there set up a number of idols, the principal of which they called Jugsom, pretending that it had existed ever since the creation. Mahmood having reached Punjab, required, according to the subsisting treaty with Anundpal, that his army should not be molested on its march through his country...'The Raja's brother, with two thousand horse was also sent to meet the army, and to deliver the following message:- "My brother is the subject and tributary of the King, but he begs permission to acquaint his Majesty, that Tahnesur is the principal place of worship of the inhabitants of the country: that if it is required by the religion of Mahmood to subvert the religion of others, he has already acquitted himself of that duty, in the destruction of the temple of Nagrakote. But if he should be pleased to alter his resolution regarding Tahnesur, Anundpal promises that the amount of the revenues of that country shall be annually paid to Mahmood; that a sum shall also be paid to reimburse him for the expense of his expedition, besides which, on his own part he will present him with fifty elephants, and jewels to a considerable amount." Mahmood replied, "The religion of the faithful inculcates the following tenet: That in proportion as the tenets of the prophet are diffused, and his followers exert themselves in the subversion of idolatry, so shall be their reward in heaven; that, therefore, it behoved him, with the assistance of God, to root out the worship of idols from the face of all India. How then should he spare Tahnesur?"...This answer was communicated to the Raja of Dehly, who, resolving to oppose the invaders, sent messengers throughout Hindoostan to acquaint the other rajas that Mahmood, without provocation, was marching with a vast army to destroy Tahnesur, now under his immediate protection. He observed, that if a barrier was not expeditiously raised against this roaring torrent, the country of Hindoostan would be soon overwhelmed, and that it behoved them to unite their forces at Tahnesur, to avert the impending calamity... Mahmood having reached Tahnesur before the Hindoos had time to take measures for its defence, the city was plundered, the idols broken, and the idol Jugsom was sent to Ghizny to be trodden under foot...