Khudabadi (also known as Vaniki, Hatvaniki or Hatkai) (Sindhi: خدا آبادي، واڻڪي، هٽ واڻڪي، واڻڪي) script is a script used for writing the Sindhi language.

Sindhi /ˈsɪndi/ (سنڌي) is an Indo-Aryan language of the historical Sindh region, spoken by the Sindhi people. It is the official language of the Pakistani province of Sindh. In India, Sindhi is one of the scheduled languages officially recognized by the federal government. It has influences from Balochi spoken in the adjacent province of Balochistan. Most Sindhi speakers are concentrated in Pakistan in the Sindh province, and in India in the Kutch region of the state of Gujarat and in Ulhasnagar region of the state of Maharashtra. The remaining speakers in India are composed of the Hindu Sindhis who migrated from Sindh, which became a part of Pakistan and settled in India after the independence of Pakistan in 1947 and the Sindhi diaspora worldwide. There are 40 million Sindhis living in Pakistan, with 39.5 million in Sindh, and over 500,000 living in other provinces. About 16% of the population of Sindhis in Pakistan are Hindus. Most of them live in urban areas like Karachi, Hyderabad, Sukkur, Mirpur Khas, Dadu, Larkana and Jacobabad. Hyderabad is the largest centre of Sindhi Hindus in Pakistan with 100,000-150,000 people. Sindhi is also spoken in India, especially in the states of Rajasthan, Gujarat and Maharashtra. It is also spoken in Ulhasnagar near Mumbai which is the largest Sindhi enclave in India, Sindhi is also spoken as a minority language in several other countries where Sindhi People have emigrated in large numbers, such as the United States, Australia, the United Kingdom, where it is the fourth-most-commonly used language, and Canada, where it is the fourth-most-spoken language. Total Sindhi population is over 42 million. There are 35 million Sindhi speakers in Pakistan, 5 million in India, 150,000 in the U.A.E, 100,000 in the UK ,50,000 in KSA, 50,000 in USA, 35,000 in Canada in 2006, and smaller numbers in other countries.