1922.| History and Ethnology of North-Eastern India. 409 
now enables us to fix the chronology of the Balbani Kings 
with a fair degree of accuracy. 
immediate cause of the establishment of the first 
descendant of the Dehli Emperor Balban, as ruler of Bengal, 
was the successful suppression by Balban of the insurrection of 
Tughril, a favourite slave whom he had made Governor of 
Bengal. About 680 A.H. Tughril had become very powerful, 
owing to the booty he had obtained from a successful interven- 
tion in the affairs of the independent Hindu Kingdom of 
Tipperah, and had been induced to declare his independence 
under the title of Sultan Mughigsuddin.' Two generals who 
were sent against him by Balban were defeated, but when 
finally, about 682 A.H., Balban in person took the field, Tughril 
was siain on the borders of Tipperah. After savage retribution 
had been made in Lakhnauti on Tughril’s adherents, Balban 
throne preferred, however, a son of Bughra Khan called 
Kaiqubad, whom they made Sultan with the title of Mu‘iz- 
zuddin. This led Bughra Khan to declare his independence in 
Bengal with the title of Nasiruddin, and he even made a 
faint-hearted attempt to claim the throne of Dehli by force of 
rms. He was ultimately, however, persuaded to return to 
Bengal without fighting, nor did he even take any active steps 
to revenge the death of his son, two years later, in 688, when 
Kaiqubad was assassinated and Jalaluddin Khilji became 
Sultan of Delhi in his stead. ‘ 
All this we know from the narration of Ziauddin Barani ; 
—but in spite of Barani’s assertion that, on the accession of 
Kaiqubad, Mahmiad struck coins, bearing his newly assumed 
title of Nasiruddin, neither coins nor inscriptions in the name 
of Nasiruddin have yet come to light, and thus, for historical 
purposes, this King must remain for the present almost a 
cypher. The only fact that corroborates Barani’s account 

_ | Babu Kailash Chandra Singha, on pp. 30-31 of i pela (a 
history of Tipperah, compiled from local recoids: printe in ‘ ae . 
1896 A.D.j, states that Tughril’s reason for invading Tippera ra 
of Maharaja Dungurfa o 
succeeded his 
n battle, and when Ratnafa 

In return Tughri ‘ 
titles of Manikya, which the ruling Princes of Tipperah have ever since 
orne 
* Elliott and Dowson, History of India as told b 
TIT, pp. 112-122, 
y its own Historians. 
