Usman Marwandi, (1177 - 19 February 1274) popularly known as Lal Shahbaz Qalandar (Sindhi: لعل شهباز قلندر‎), was a Sufi saint and poet who is revered in South Asia.

[1] Born in Marwand, Sistan,[4][5] Lal Shahbaz Qalandar eventually settled in Sindh and is revered by the local Sindhi population.

It was passed down to local Muslim devotees of the saint, many still believe like Jhulelal, Lal Shahbaz controls ebb and flow of Indus and thus name.

[14] There is evidence of his presence in Sindh in 1196 when he met Pir Haji Ismail Panhwar of Paat and he is believed to have arrived in Sehwan around 1251.

There he established a meeting house (khanqah), taught in the Fuqhai Islam Madarrsah and wrote his treatises Mizan-us-Surf, Kism-e-Doyum, Aqd and Zubdah.

[1] In Multan, he met Baha-ud-din Zakariya of the Suhrawardiyya order, Baba Fariduddin Ganjshakar of the Chishtiyya and Syed Jalaluddin Bukhari.

[17] Later on the shrine was decorated with Sindhi 'kashi-tiles', mirror-work and a gold-plated door was installed by the late Prime Minister of Pakistan, Zulfikar Ali Bhutto.

Lal Shahbaz's annual Urs (death anniversary), held on the 18 Sha'aban – the eighth month of the Muslim lunar calendar, brings more than two million pilgrims from all over Pakistan and parts of India, Bangladesh.