i am doing my masters wid statistics and done my B.com with accountancy.. so which subject should I prefer for optional subject ?

accounting as optional beacuse u r doing ur pg in statitices n it will be help full for u in economice n also u hv gd command in accounting they both r coreated to eachother as per mamgt n ecomomice ................

My suggestion would be to choose Economics. With economics as your core subject you have prospects of joining as an economist apart from a statistician.