Mumbai, June 25 -- A set of 35 handwritten letters by Nobel Laureate Rabindranath Tagore to renowned sociologist and musicologist Dhurjati Prasad Mukerji, between 1927 and 1936, will come up for auction on Wednesday. The letters, all written in a measured and neat Bengali script, carry a world of details that offers insights into the poet's internal world as well as his response to the literary milieu of the time. Mukerji, though most known for his work as a Marxist sociologist, was also a keen critic of literature, drama and music. Many of these letters are written on different letterheads, including Visva-Bharati, the university he founded in Santiniketan, his Uttarayan residence, Glen Eden in Darjeeling, and aboard his houseboat, Padma....