Mr.Rusin Thathsara is a student studied at Sivali central college ,Rathnapura,Sri Lanka.He is a writer,app developer,Researcher,Astronomy magazine creator,And He is well known as a Astro Follower.He is the writer the of the first book which is written about a school principal first time in the world named "කමල් සර්ගෙන් ඔක්සිජන් ",And also he is the writer of the first imaginative astronomical magazine in the world ,"mad creator ".He had developed Astronomy app called "astro imaginator",He had also written "corona times" book which says about imaginative astronomy during covid 19.Now he is the president of the Gem Citys Astronomical Confederacy .