The caste system among Muslims

Sources indicate that the castes among Muslims developed as the result of close contact with Hindu culture and Hindu converts to Islam.

Religious scholar Yoginder Sikand elaborates that the caste system among Muslims was not due to the "influence of Hinduism among a previously 'pure', 'uncontaminated' Muslim community," but rather to "the continued impact of Hindu beliefs and customs on the converts who still remained within a largely Hindu cultural universe and retained many of its associated beliefs and practices"

Discriminations

In some parts of South Asia, the Muslims are divided as Ashrafs and Ajlafs.
Ashrafs claim a superior status derived from their foreign ancestry.
The non-Ashrafs are assumed to be converts from Hinduism, and are therefore drawn from the indigenous population.
They, in turn, are divided into a number of occupational castes.

Interactions between the oonchi zat (upper caste) and neechi zaat (lower caste) are regulated by established patron-client relationships of the jajmani system, the upper castes being referred to as the 'Jajmans', and the lower caste as 'Kamin'.
Upon contact with a low-caste Muslim, a Muslim of a higher zaat can "purify" by taking a short bath, since there are no elaborate rituals for purification.[7] In Bihar state of India, cases have been reported in which the higher caste Muslims have opposed the burials of lower caste Muslims in the same graveyard.

Some of the high castes are
Brahmin[religious teachers also known as Pandits or Molvi's
Jatt Land owners they are a mixture of Hindus and Sikhs
Mughal Persian kings
Rajput Land owners They are mostly Hindu converts

Some of the low castes are
Chura/Mussali
Dalit
Dhobi
Mochi
Shudra

You must never share cups plates and things of that sort with the lower castes

There are also many other Hindu practices that are still present among Muslims today

Lollywood (Urdu: لالی وڈ) refers to the Pakistani film industry based in the city of Lahore. The word "Lollywood" was first coined in the summer of 1989 in the now defunct magazine "Glamour" published from Karachi by a gossip columnist Saleem Nasir. The film industry in Lahore started in 1929 with the opening of the United Players' Studios on Ravi Road. The cornerstone for the studio was set by Abdur Rashid Kardar. Since then the studio has managed various indigenous productions competing with other film production centres in the undivided India, namely Bombay and Calcutta.

Most of the feature films shot in Pakistan are in National Language Urdu. Urdu (spoken elements of Hindi and Urdu are exactly the same) is often used in feature films of Bollywood and may also be included in films in local languages like, Punjabi, Pashto, Balochi or Sindhi.

The Pakistani film industry is credited with having produced some of the most notable and recognised filmmakers, actors, writers and directors, and for introducing pop music to South Asia.[

Pakistani Music

Pakistani pop music refers to popular music forms in Pakistan. Pakistani pop is a mixture of traditional Pakistani classical music and western influences of jazz, rock and roll, hip-hop and disco sung in various languages of Pakistan, including Urdu language. The popularity of music is based on the individual sales of a single, viewership of its music video or the singer's album chart positions.

Pakistani pop music is attributed to have given birth to the genre in the South Asian region with Ahmed Rushdi's song ‘Ko-Ko-Korina’ in 1966.[1]

Veterans like Runa Laila started the pop industry in Pakistan while the fifteen-years old pop sensation Nazia with her brother Zohaib Hassan ushered the birth of pop music all over South Asia tailing on the success of her British endeavours.

From Rushdi's pop hits to songs sung by the Hassan siblings, to bands including Junoon, Vital Signs and Strings, the Pakistani pop industry has steadily spread throughout South Asia and today is the most popular genre in Pakistan and the neighbouring South Asian countries.
Songs sung by Pakistani pop artists are a regular feature on soundtracks of most of the Bollywood movies.

The genre has always been accepted in the mainstream youth culture but hindrances came in the form of changing governments, radical Islamicisation, foreign influences and a stiff competition from neighbouring countries.
Still, pop music thrived and survived with a steady growth. In was not until recent times that Pakistani pop music was to be admired throughout South Asia and the rest of the world.