I am Sayantan Dey. During my M.Sc days, I faced a lot of Problems. There were Books, Notes, and many more things. But somewhere I was missing something. I usually do lot of self study and make my owns notes. The source of these  notes can be anything from a magazines to research papers. To make this work easier for others, I thought of creating a platform, where I can explain and discuss on various topics. Initially the Topics were only Mathematics, but gradually that extends to Physics and Computer Science.