I am a practising advocate in mumbai suburb. I want to put up a sign board of my name along with phone no. what is the standard size for it. a shop keeper made a board of 3" X 2" size. in my opinian it is too big. also due to some prob. society may not allow me to hanf that board, on society's compund wall. so shall I hang it on the adjecent light poll? will it amount to advertisement?