After a long leave, I am back to write about some of our legends. I am sure most of us never heard of this person. But the inventions he made at his time astonishes many, not only in India but in theworld.                                                            

                        G.D.Naidu (Gopalaswamy Doraiswamy Naidu) was an eminent inventor, engineer, educationalist and industrialist from Coimbatore. His contributions were primarily industrial but also span the fields of electrical...

Born in 1114 AD (in Vijayapura, he belonged to Bijjada Bida) he became head of the Ujjain school of mathematical astronomy (Varahamihira and Brahmagupta had helped to found this school or at least 'build it up'). There is some confusion amongst the texts I have referred to as to the works that he wrote. C Srinivasiengar claims he wrote Siddhanta Siromani in 1150 AD, which contained four sections: