How did the Hindi-Urdu controversy become one of the factors in the formation of the Muslim League?

In the United Provinces (now Uttar Pradesh), petitions to the offices and courts were submitted only in Urdu, as it was the court language. The Hindus for long demanded a change in this procedure. Finally on 8 April 1900, the government gave instructions that petitions written in Hindi in the Devanagari script would also be accepted. The Muslims resented this directive and called for protest meetings all over the province. The Hindus held counter meetings and the controversy continued for months, as the rift between the two communities widened, leading to the formation of the Muslim League.