Following the Moplah Riots of 1921, Sahib worked towards establishing peace in riot affected areas but was arrested and sentenced to two years imprisonment in October 1921 by the British authorities. For his participation in the Salt Satyagraha of 1930 where he participated in the breaking of the salt law on the Calicut beach, he was lathicharged and sentenced to nine monthsrigorous imprisonment and lodged at the Kannur Central Jail.
Editor
Mohammed Abdur Rahman Sahib was editor and publisher of the Malayalam daily Al-Ameen which was published from Calicut during 1924–1939. The paper aimed to strengthen the freedom movement and nurture nationalism among the Muslims of Malabar. However conservatives in the community opposed to his progressive views conspired with the colonial authorities to repeatedly disrupt its publication. The paper was finally close down in 1939 by the British authorities. According to a local legend, an anonymous admirer of his offered him valuable jewellery to restart the paper after it closed but he refused it.
Being an admirer of Subhas Chandra Bose, Muhammad Abdur Rahman sahib associated himself with the All India Forward Bloc formed by Bose. After the Second World War broke out and Abdur Rahiman Sahib was jailed from 1940 to 1945 by the British Raj. After the release from jail, he returned to Calicut and started active participation in Congress activities. He died on 23 November 1945 aged 47 at Pottashery village near Chennamangallur just after addressing a public meeting at Kodiyathur The medical records state that he died of a massive heart attack, but still some others believe that he was poisoned. The Kerala government took over Sahib's house at Eriad to protect it as a Nasrul Islam.
Commemoration
In 1998 the Department of Posts and Telegraph issued a commemorative stamp in his honour. The Mohammed Abdurahman Memorial Orphanage College and the Indianness Mohammed Abdurahman Sahib Academy, Kozhikode have been named after him. Akkitham Achuthan Namboodiri's poem Maranamillatha Manushyan that dwells on religious amity and the need to imbibe the spirit of the Koran was written in memory of Sahib.
In 2011 the Malayalam filmVeeraputhran, based on N.P. Mohammed's book Mohammed Abdurahiman Oru Novel, was released. Directed by P. T. Kunju Muhammed, it had the actor Narain playing Abdur Rahiman Sahib. The movie became controversial after writer Hameed Chennamangaloor alleged it of insinuating that Sahib was poisoned to death while medical reports and Sahib's official biography state that he died of a heart attack. The Indian Union Muslim League also expressed its reservations over its depiction in the film.