1972 Language violence in Sindh
[2][3] Violent clashes erupted in Karachi and other towns in Sindh Province, Pakistan, resulting in the deaths of at least 19 people on the third day of protests over the choice of Sindhi as the official provincial language.[4] The demonstrations were triggered by a bill passing Sindhi as the official language instead of Urdu, spoken by half of Karachi's muhajir population.[4]Then President Zulfikar Ali Bhutto planned to meet with both language proponents to find a resolution.In 1972, when the PPP-led Sindh government declared Sindhi as the province's official language, groups of Muhajir students formed the Muttahida Tulaba Mahaz Karachi (MTMK).The movement started by organizing a protest-movement by changing the number plates of motor vehicles into Urdu alphabets and numerals and had vandalized English signboards.