What all things did Parimal Ghosh tell Bepin Babu to remind him of his visit to Ranchi?

Parimal Ghosh told Bepin that he had been to Ranchi in 1958. He fell in Hudroo and cut his right knee. The next day he had to go to Netarhat but due to pain he couldn’t and he stayed at Dinesh Mukherjee’s bungalow.