 He was also instrumental in publishing a number of letters written by his friend and poet, G. Sankara Kurup as well as the writings of Kutti Kunju Thankachi, the 19th century writer and the daughter of Irayimman Thampi, which was edited and published by Guptan Nair under the title, "Kuttikunju Thankachiyude Kruthikal" in 1979.The Kerala Sahitya Akademi instituted an annual award for literary criticism in 1966. the award for the second year was awarded to Guptan Nair, for his work, "Isangalkkappuram".Nair received the Kendra Sahitya Akademi Award in 1983 and the Lalithambika Antharjanam Award in 1995.