his spiritual mentor, Nizamuddin Auliya, that he chooses to appreciate
  some aspects of Hindu religion and customs in Nuh Sipihr. In fact,
  through an anecdote in Hasht-Bihisht, he preaches religious toleration by
  narrating a dialogue between a Muslim Haji going to Mecca and a
  Brahmin pilgrim going to Somnath. Amir Khusrau"s poetry offers a
  powerful metaphor for secular thinking and living.
      He wrote poetry in Persian as well as what he called Hindvi, a
  combination of local Bhojpuri and Persian, which later evolved into Hindi
  and Urdu. He composed songs and riddles in the more common spoken
  dialect of the time, called ‘Dehlavi Hindi’. Though he himself did not take
  these seriously, they appealed greatly to the common people. Jawaharlal
  Nehru in his book ‘Discovery of India’ has written, "Khusrau"s enduring
  fame in India rests on the riddles, quibbles and songs written by him."
      His contribution to the Hindi language and Hindi poetry is
  acknowledged by the critics of even today. The language he used later
  developed into Hindustani. Many of his poems are used till today in
  Hindustani Classical music as bandishes and as ghazals by Ghazal singers.
      His deep and growing attachment with Nizamudddin Auliya took him
  away from more worldly ambitions and he turned more and more to
  spiritual seeking and ecstasy. When Nizammudin Auliya passed away
  Khusrau tore his clothes and blackened his face and went to his master"s
  grave. In a few months" time, in 1325 AD, Khusrau too passed away and
  was buried near that grave as desired by the master. These graves are a
  place of pilgrimage for both Hindus and Muslims to the present day.
NEW SOCIO-CULTURAL TRENDS
Mobility and Cultural Mixing
Initiation of World’s Most Significant Migratory Pattern Brutal Mongol
attacks on cities and towns across southern Eurasia initiated centuries of
migration into India. Warriors, scholars, mystics, merchants, artists, artisans,
peasants and workers followed ancient trade routes and new opportunities
that opened up in the new domains      of Indian sultans. Migrants poured down