Although taken in the firm's studio, with the woman posing upright, one can from this portrait and the wooden beam infer the literally backbreaking work hillstation workers endured.
This postcard is likely based on a portrait by Johnston & Hoffmann of 22 Chowringhee [also Chourangi] Road, Kolkata, one of the most storied photographic firms in British India.
Bhutias are a Sikkimese people of Tibetan ancestry, photographed here most likely in Johnston & Hoffman's Darjeeling studio – compare to A Group of 3 Nepaulese which seems to have the same backdrop.
Note the diagonal leading the eye into a rich scene, the figures in the corners of the frame, the tethered cow on the left, the pots in the coals, the vibrancy of this human space under a hoisted banner.
An advertising postcard celebrating the Independence struggle and the poet Sarojini Naidu, who the Turkish poet Halide Edib, then on a visit to India, described in her book Inside India (1938, p. 44):