Hi Sukhjeet,

Having done your diploma in Mechanical Engineering you can opt for any other branch in B.Tech as a lateral entry.

And if you score high in the entrance exams you can also get the top Colleges in the state or Country.

But you have to always keep in mind that it will be tough for you to settle into a whole new stream and you have to give extra time for it to get a good placement.

But it is possible and doable.

Best of Luck.