In Hindi literature, Amritlal Nagar rose to fame with his humorous and satirical sketches, imitating the colloquial language of the descendents of Nawabs, though decadent yet always nostalgic. Amritlal Nagar has an inimitable witty style of writing. He has also written several short stories and novels, all of them permeating with Lucknow life. 'Ye Kothewaliyan' portray intimate sketches of prostitutes in Chowk, Lucknow. 'Suhag Ke Nupur' was originally a radio-play and later converted into a novelette based on the Tamil classic tale 'Silappadikaram'. But the most unforgettable character in his social novels is of 'Bua' in Bund aur Samudra. His late longer novel Amrit aur Vish for which he received the Sahitya Akademi Award in the year 1967 and the Soviet Land Nehru Award in the year 1970, is a long winding rather loose constructed rigmarole where again he shows his mastery over dialogue.
Amritlal Nagar has given many stories and humorous anecdotes and his other interests besides literature include archaeology. Amritlal Nagar was never long associated with any institution, literary or otherwise. He has knowledge of several languages, including Sanskrit language, Bengali language, Marathi language and Urdu language, besides his mother tongue Gujarati. Amritlal Nagar translated Godse Bhataji's Marathi book, Maza Pravas (My travel). Amritlal Nagar has contributed immensely to Indian literature. Some of his popular novels include Saat Ghunghat Waalaa Mukhadaa, Maanas Kaa Hans, Naachayo Bahut Gopaal, Khanjan Nayan, Orachhaa Ki Nartaki, Chakallas, Karwat, Peedhiyan, Gadar Ke Phool and Amrit aur Vish. Children's literature by Amritlal Nagar includes Bajarangi Pahalwaan, Bajarangi Naurangi and Natkhat Chaachi. Amritlal Nagar was also conferred with the Padma Bhushan Award by the Government of India.