He is known as Parrot of India or in Arabic ‘Tuti-e-Hind’.
The real name of Amir Khusro was Abul Hasan Amir Khusro.
He was born in Patiyali town of U.P.
He got the protection of all rulers of Delhi sultanate from Balban to Gayasuddin.
He (1253 - 1325) was a disciple of Nizamuddin Auliya.
Khusrow is sometimes referred to as the "voice of India", “Father of Urdu literature” and “Father of qawwali”.
Tansen was a famous musician and one of the nine jewels in Akbar's court. He has contributed immensely to the dhrupad form of music. He lived around the 1500's.
Ibn Battuta was a Moroccan traveler who visited India during the period of Delhi Sultan Mohamad Bin Tughlaq. He is famous for his book Rihla.