Egarosindur is a village in Kishorganj. The village is situated on the east side of the river Brahmaputra. The name of this village is found in the Akbornama by the historian Abul Fazal. There is a debate among historians about the history of Egarosindur. Some engraved silver coins, iron-axes, lances and bows and arrows were discovered there presumed to be from the 10th B.C. historians also believe that Egarosindur was inhabited since 1000B.C., i.e. the time of the Murza. There lived many tribals named choch and hajong. Egarosindur was a centre of trade and commerce.
In 380 AD Egarosindur was under the reign of Dobak state. After that this region was reigned by the King of Kamarupa. Another historical analyses prove that in 8th century Egarosindur was an important river port where Muslim traders exported and imported their product with Rome and Paris. In the 10th century Egarosindur was under the control of Azhaba, a king of Hazradi. Azbaha triumph over this land by defeated King Botong. But after some years Azbaha was beaten by Bebuid Raza and Bebuid Raza was the first popular king of this land. In his time, Egarosindur was reborn again. He built spectacular palaces, forts, big canals, temples etc...

In the second part of the 10th century king Srishochandra controlled this land. After that this area might be governed by Shen king and then it is included with the land of Kamarupa. In the beginning of 14th century the king of Goura, Firoz Shah succeed to win Egarosindur. In 1338 Sultan Fakruddin Mubarak Shah take the authorization of this ancient land. It was seemed that when Sultan was in a critical position, he took shelter in Egarosindur. In 1577 Isa Khan declared Egarosindur a sovereign state. In his age this place appeared as a remarkable place of trade and commerce. In the fort of Egarosindur there held a massive battle between Isa Khan and Mansingh, the general of Akbar. But in the battle field Mansingh was greatly impressed by the boldness and hospitality of Isa Khan. In one stage when they carried out a duel, Mansingh’s sword broke down. Isa Khan did not took his life and most surprisingly he offered his own sword to Mansingh. He said, "I could not kill any helpless person". And then they made an agreement in the battle field. Akbar granted Isa Khan a jaigir lease over 22 pargonas. After Isa Khan, Egarosindur as a distinct entity was again lost to history. In the reign of Shahjahan in 1638, the king of Assam attacked Egarosindur. Though he was not competent to defeat the warrior of Shahjahan, he destructed this land ruthlessly when he fled away from the battle field.