What was the cotton business proposal Damu Anna received and why did it put him in a state of turmoil?

As narrated in Chapter 25, Damu Anna received a letter from a friend in Mumbai regarding a lucrative business opportunity. The proposal was to enter into a partnership to trade cotton, with the friend asserting that the price would rise instantly. The deal promised a substantial net profit of two lakh rupees, which would be split evenly between them, giving each partner a one lakh rupee gain. His friend urged him to reply quickly and be 'smart,' emphasizing that the business was clean and safe. This proposal caused Damu Anna's mind to be in a turmoil because it was a significant financial opportunity presented as a fleeting chance that required a swift decision, making him anxious not to let the opportunity pass.