Literary texts are not a major source of information for the study of Medieval Indian history, as they are often biased and unreliable.

Textual analysis is a major method used by historians to study Medieval Indian history, as it allows them to examine written sources such as inscriptions, manuscripts, and chronicles.

The Bhakti movement was a major religious and social reform movement that originated in Medieval India and had a profound impact on Indian society.

The nature of the Delhi Sultanate is a major historiographical debate in the study of Medieval Indian history, with scholars debating whether it was a legitimate state or simply a collection of military camps.

The Tabaqat-i-Nasiri is a major source of information for the study of the Delhi Sultanate, as it provides a detailed account of the history of the Delhi Sultans from the 12th to the 14th centuries.

The Akbarnama is a major source of information for the study of the Mughal Empire, as it provides a detailed account of the reign of the Mughal emperor Akbar.

The Bhagavad Gita is a major source of information for the study of the Bhakti movement, as it contains teachings on devotion and surrender to God.

The Prithviraj Raso is a major source of information for the study of the Rajput kingdoms, as it provides a detailed account of the life and reign of the Rajput king Prithviraj Chauhan.

The nature of the Delhi Sultanate is a major historiographical debate in the study of Medieval Indian history, with scholars debating whether it was a legitimate state or simply a collection of military camps.

The nature of the Mughal Empire is a major historiographical debate in the study of Medieval Indian history, with scholars debating whether it was a centralized or decentralized state.

The nature of the Bhakti movement is a major historiographical debate in the study of Medieval Indian history, with scholars debating whether it was a unified movement or a collection of diverse religious traditions.

The nature of the Rajput kingdoms is a major historiographical debate in the study of Medieval Indian history, with scholars debating whether they were independent states or vassals of the Delhi Sultanate or the Mughal Empire.

All of the above are major historiographical debates in the study of Medieval Indian history.

The nature of the British Raj is not a major historiographical debate in the study of Medieval Indian history, as it falls outside the time period of Medieval India.