Minhaj-i-Siraj was a medieval chronicler who wrote about the history of Bengal. He is known for his work Tabaqat-i-Nasiri, which is considered to be one of the most important historical sources for the period of the Delhi Sultanate in India. In this work, he chronicled the history of Bengal from the early 13th century to the early 14th century.

Language of Minhaj-i-Siraj's work:
Minhaj-i-Siraj wrote in Persian, which was the official language of the Delhi Sultanate. Persian was also the language of administration, literature, and culture during that period. Persian was a language that was widely used in the courts of the Delhi Sultanate and was considered to be the language of the elite.

Content of Tabaqat-i-Nasiri:
Tabaqat-i-Nasiri is a valuable source of information on the political, social, and cultural history of Bengal during the Delhi Sultanate period. Minhaj-i-Siraj wrote about the early Islamic rulers of Bengal, such as Bakhtiyar Khalji and Shamsuddin Ilyas Shah. He also wrote about the impact of Islam on the culture and society of Bengal.

The work provides valuable information on the political and economic systems of Bengal during that period. It also provides insights into the social and cultural life of the people of Bengal. The work is also noteworthy for its detailed accounts of the wars and battles that were fought during the period.

Significance of Minhaj-i-Siraj's work:
Tabaqat-i-Nasiri is considered to be an important historical source for the study of medieval Indian history, especially the history of Bengal during the Delhi Sultanate period. The work provides a wealth of information on the political, social, and cultural life of the people of Bengal during that period. It is also important for its insights into the impact of Islam on the culture and society of Bengal.

Conclusion:
In conclusion, Minhaj-i-Siraj was a medieval chronicler who wrote in Persian. His work Tabaqat-i-Nasiri is considered to be an important historical source for the study of medieval Indian history, especially the history of Bengal during the Delhi Sultanate period. His work provides valuable insights into the political, social, and cultural life of the people of Bengal during that period.