Which MBA specialization is preferable for a B.Tech mechanical student?

Hi, It depends on your skill. If you are good in people skill you can take up marketing or if you like to interact you can choose HR. If you good in finance then you can go for it too.

Operations would be best for you given you are from the mechanical background but only if you want to work in manufacturing sort of firm. If you want to go for sales or finance jobs then you know what you have to choose. It also depends on your interest.