Hello,Ks Monica

As your interesr lie in Engineering you pursue any of the following course after 12th 

Aeronautical engineering

Automobile engineering

Civil engineering

Computer engineering

Marine engineering

Architecture

Merchant navy

Commercial pilots

Defense

You can join Indian defense services(army,navy,air force ) through NDA exam.

Forensic science

SC in Aviation science

Print and media technology

Mining Engineering 

For all engineering course you will have to appear for JEE mains and advance to make it to the top IIT's.Or you can also apppear for privates institutes entrance exam(BITS PILANI).

The above all mentioned courses are highly paid as well as highly respected after these course you can either go for masters or start working.

Hope your query is answered.