i did diploma in E & C engng, and because of some reason i cldn't join B.E and i joined for BBM, Was it a right decision? If no which is the right choice other than B.E? Can i do MBA after diplom?

yu have mentioned that you have joined BBM. after BBM you can very well go into an MBA program. Unfortunately with a Diploma you cannot get yourself enrolled into a MBA program. For that you need to have a graduation

Hello Shafeeque , You can go for BSC if you want and if you are interested for MBA then you need to be graduate .