Sanskrit books collected by Firoz Shah Tughlaq after his campaign to Nagarkot (Kangra) were translated into Persian as 'Dalail-i-Firoz Shahi' by:

After his campaign to Nagarkot (Kangra) in 1361, Firoz Shah Tughlaq collected a large number of Sanskrit books from the Jwalamukhi temple; some of them were translated into Persian by Azizuddin Khalid Khani, under the title "Dalail-i-Firoz Shahi".

About the Nagarkot campaign:

• Nagarkot (Kangra), in present-day Himachal Pradesh, was an important fort and centre of pilgrimage.
• Firoz Shah Tughlaq marched against it in 1361, and the local Raja submitted after a siege.
• He visited the famous Jwalamukhi temple, where he found a large library of Sanskrit books (about 1,300, according to tradition).

About the translation:

• Firoz Shah ordered some of these books to be translated into Persian.
• Azizuddin Khalid Khani (also spelt A'izzuddin Khalid Khani), a scholar at his court, translated works dealing with astronomy, astrology, philosophy and omens.
• The translation was called "Dalail-i-Firoz Shahi" ("Proofs of Firoz Shah").
• This was one of the earliest attempts to translate Sanskrit works into Persian in the Delhi Sultanate.

Other translations under Firoz Shah:

Some works on music and medicine were also translated.

Firoz Shah's interest in learning:

• He set up many madrasas (colleges), including the Firoz Shahi Madrasa at Hauz Khas, Delhi.
• He wrote his autobiography, "Futuhat-i-Firoz Shahi", describing his achievements and welfare measures.
• Historians such as Barani and Afif wrote histories during his reign.
• He took a keen interest in ancient monuments, and brought two Ashokan pillars to Delhi; he tried to find someone who could read their inscriptions, but no one could at the time.

Later translations:

• Akbar set up a translation bureau (Maktab Khana), which translated many Sanskrit works into Persian.
• Dara Shikoh translated the Upanishads into Persian as "Sirr-i-Akbar".

Why not the other options?

• ✗Abul Faizi was a later scholar at the Mughal court.
• ✗Barani and Afif were historians.