Analysis of information sources in references of the Wikipedia article "Khalji dynasty" in English language version.
...helps identify another curious flag found in northern India – a brown or originally silver flag with a vertical black line – as the flag of the Delhi Sultanate (602-962/1206-1555).
The Khaljis and other Afghan tribes kept apart from their mostly Hindu subjects, living in cantonments, or mahalas, based on clan affiliation. Jalal al-Din Firuz, the first Khalji Sultan, even refused to attend the court in Delhi, and built a new capital a few kilometers away in the Afghan enclave of Kilokhri.
Apabhramsha seemed to be in a state of transition from Middle Indo-Aryan to the New Indo-Aryan stage. Some elements of Hindustani appear ... the distinct form of the lingua franca Hindustani appears in the writings of Amir Khusro (1253–1325), who called it Hindwi[.]
In 1290, the Turk-Afghan Khalji clan ended the first mamluk dynasty and then ruled in Delhi until one of their own Turkish mamluk commanders rebelled and established his own Tugluq dynasty
The Khalji rebellion was welcomed by the non-Turkish sections in the nobility. The Khaljis who were of a mixed Turkish-Afghan origin, did not exclude the Turks from high offices, but the rise of the Khaljis to power ended the Turkish monopoly of high offices
A Bactrian Document (BD T) from this period brings interesting information about the area to our attention. In it, dated to BE 476 (701 AD), a princess identified as `Bag-aziyas, the Great Turkish Princess, the Queen of Qutlugh Tapaghligh Bilga Sävüg, the Princess of the Khalach, the Lady of Kadagestan offers alms to the local god of the region of Rob, known as Kamird, for the health of (her) child. Inaba, arguing for the Khalaj identity of the kings of Kabul, takes this document as a proof that the Khalaj princess is from Kabul and has been offered to the (Hephthalite) king of Kadagestan, thus becoming the lady of that region. The identification of Kadagestan as a Hephthalite stronghold is based on Grenet's suggestion of the survival of Hephthalite minor stares in this region,' and is in con-
salim of samana, the silahdar, accompanied the position behind the Sultan
the Sultan appointed his Wazir Nusrat Khan to deal with the Jalali nobles...Nusrat Khan confiscated property worth about one crore. This brought to an end the influence of the Jalali nobles and strengthened the government treasury. Also the Sultan got a happy riddance from a nobility, whose loyalty was always doubtful. After this he created a new nobility whose distinctive feature was its loyalty and friendship of Ala-ud-Din
Malik Naik(a Hindu convert to Islam)
This dynasty, like the previous Slave dynasty, was of Turkish origin, though the Khaljī tribe had long been settled in Afghanistan. Its three kings were noted for their faithlessness, their ferocity, and their penetration to the South of India.
...helps identify another curious flag found in northern India – a brown or originally silver flag with a vertical black line – as the flag of the Delhi Sultanate (602-962/1206-1555).
Indeed, it seems very likely that [the Khalaj] formed the core of the Pashto-speaking Ghilji tribe, the name [Ghilji] being derived from Khalaj.
Nusrat Khan Jalesari who was the Kotwal in the first year of the Alai reign was an Indian Muslim
...helps identify another curious flag found in northern India – a brown or originally silver flag with a vertical black line – as the flag of the Delhi Sultanate (602-962/1206-1555).