Sunghursh ("Struggle") is a 1968 Indian Hindi film directed and produced by Harnam Singh Rawail.

It is based on Layli Asmaner Ayna ("Layli Does Not Go To Heaven"), a short story in Bengali language by Jnanpith Award-winning writer Mahasweta Devi, which presents a fictionalised account of a vendetta within a thuggee cult in the holy Indian town of Varanasi.

Naushad and Badayuni had worked together on many films previously and were "the most sought after" composer-lyricist duo of the time in Bollywood.

Prasad's son Shankar does not agree with such practices, opposes his father, and decides to leave the village with his wife and their three children: Kundan, Yashoda and Gopal.

Naubatlal's family decides to leave the village and settle down in Calcutta where his two young sons, Dwarka (Sanjeev Kumar) and Ganeshi Prasad, work as merchants.

When he is invited to his younger sister, Yashodha's marriage, Kundan gets a chance to visit his mother and grandmother and his siblings after many years.

[4] When the film was near completion, it was rumoured that with the increasing conflicts between the two leading actors, Vyjayanthimala would be replaced by another actress, Waheeda Rehman.

Rehman had already replaced Vyjayanthimala in another Hindi film starring Kumar, Ram Aur Shyam, (1967) which was being shot simultaneously with Sunghursh.

[6] Sanjeev Kumar, who had previously acted in theatre and other smaller film productions, was noticed through his performance of negative role through Sungharsh and he then shot to fame.

[7] He was commended for his role while a newcomer as compared with established actors like Dilip Kumar and Balraj Sahni.

Naushad and Badayuni had worked together on many films previously and were "the most sought after" composer-lyricist duo of the time in Bollywood.

[13] Similar to his earlier work where Naushad had simplified Hindustani classical music to produce filmi songs,[14] the solo "Mere Paas Aao Nazar To Milao" rendered by Lata Mangeshkar was based on Bhairavi Raga.