Pita ke Patr Putri ke Naam- Purani Duniya ke Bade Bade Sheher in Kissa Kahani Stories Before Sleep

In this letter, Pt. Jawaharlal Nehru talks to Indira about old
cities and how they were rebuilt time and again. In this
philosophical enquiry, he also discusses also it takes years for
a civilization or a city to reach its zenith and them reach a
point where it is deserted, only to become civilized again.