Upendranath Ashk was born Upendranath Sharma to a Saraswat Brahmin family in Jalandhar, Panjab. Ashk began composing Panjabi couplets at the age of 11, and began writing in Urdu in 1926, under the tutelage of the Jalandhari poet Mohammad Ali "Azar". His first Urdu poem was published in the Sunday supplement of the popular Lahore-based Urdu daily Milap. In 1930, while still in college, he published his first collection of short stories, titled Nau Ratan. It was during this phase that he adopted the nom de plume 'Ashk' in keeping with the Urdu tradition of taking a takhallus. The takhallus was chosen in honour of a childhood friend, whose death left a lasting impression on him. After graduating from college in 1931, Ashk taught at his alma mater for a few months before leaving for Lahore with the poet-journalist Mela Ram "Wafa". For the next three years he worked for Lala Lajpat Rai's newspaper Vande Mataram as a reporter, and then worked his way up as a translator and then assistant editor for the Daily Veer Bharat and the weekly Bhoochal. During this time he continued to publish poems and short stories in local journals. He also married his first wife, Sheela Devi, in 1932. In 1932, on the advice of the celebrated Hindi author Premchand with whom he maintained a correspondence, Ashk switched to writing in Hindi, painstakingly writing each story in Urdu first and then translating it into Hindi. His second collection of short stories, Aurat ki Fitrat, was published in Hindi in 1933, with an introduction by Premchand. In 1934, financial and other problems in his family made Ashk decide that he must adopt a more secure career path. He resolved to study for a law degree and become a sub-judge. But just as he completed his degree, his wife, Sheela Devi, died from tuberculosis. In a state of profound grief, Ashk abandoned his plan to enter the legal profession and resolved to become a full-time independent author. At this juncture he also resolved to write realistically about suffering and poverty. In 1936, he published the short story "Ḍāchī" which was considered a milestone in progressive realism in Hindi-Urdu fiction. His son, Neelabh Ashk, was also a poet and translator.
In 1944, Ashk moved to Bombay to write dialogue and screenplays for the production company Filmistan. At Filmistan, Ashk worked closely with Shashdhar Mukherji and the director Nitin Bose. He wrote dialogues, stories and songs and even acted in two films: Mazdoor, directed by Nitin Bose, and Aath Din, directed by Ashok Kumar. While in Bombay, Ashk became involved with IPTA and wrote one of his most noted plays, Tūfān se Pahale, which was produced for the stage by Balraj Sahni. The play, which was critical of communalism, was later banned by the British government. In 1946, Ashk contracted Tuberculosis and in early 1947, he was moved the Bel Air Sanatorium in Panchgani. Ashk remained in the sanatorium for two years, during which time Girtī Dīvārẽ was first published, in 1947, and he also composed his well-known poem "Barghad kī Beṭī".
Move to Allahabad
In 1948, Ashk and Hindi poet Nirala each received Rs. 5000 from the government of Uttar Pradesh to support them through illness. This enabled Ashk to move to Allahabad, where he lived until his death in 1996.