Brighter Kashmir. The Department of Posts has extended the working hours of the iconic Floating Post Office at Nehru Park on Dal Lake, Srinagar, which will now remain operational from 9:00 AM to 9:00 PM. SRINAGAR: Working hours at India’s only Floating Post Office, operating from a houseboat on Dal Lake in Srinagar, have been extended from five hours to 12 hours, Department of Posts announced Friday.