Trilokeshwar Shonku (Bengali: প্রফেসর শঙ্কু) is a fictional scientist and inventor created by Satyajit Ray in a series of Bengali science fiction books of the same name published from 1965 on. He is the central protagonist of the series. Professor Shonku resides in Giridih. His house contains a laboratory, and he lives with his pet cat, Newton, named after Sir Isaac Newton and his man-servant, Prahlad. He was born in the year of 1912 but his year of death is unknown.
Topic: Smallest planet of solar system, Extraterrestrial life
Plot: Abinash Majumdar finds a ball (spherical object) near Usri river. Very soon he notices the ball's peculiar characteristics like the colour of the ball changes in every few hours, sometimes it gets wet and other times it becomes as cold as snow. Abinash Majumdar reports it to Professor Shonku. After few days, Abinash Majumdar gives the ball to Professor Shonku. Professor Shonku discovers that the ball ("spherical object") is actually a small planet.
Location: Giridih
Source: Wikipedia