Dear Isha,
Since you are interested in Machines, join Mechanical engineering.
It is a 4 year undergraduate course and is one of the most sought after degree courses in engineering stream.
The eligibility to take admission in this course is 10+2 pass or equivalent.
Admission process for the same is generally entrance exam based.

JEE Main, COMEDK, UPSEE,BISAT,VITEEE,SRMJEEE are some such entrance exams conducted for admission to various mechanical engineering colleges.
COMEDK application forms are available right now .

B.Tech mechanical engineering it's the branch of engineering that involves production, designing, and operations of machine.

If you are from Karnataka then you have an entrance exam called KCET , through which you can get admission in B.Tech in various colleges in Karnataka.

Hope this helps.

Any queries are most welcomed.

hello aspirant,
According to your interests, there is nice and beautiful career ahead if you are doing hardwork in that particular stream i.e. mechanical engineering in b.tech.
The process goes like this, after finishing your intermediate i.e 12th you start appearing entrance exams like EAMCET, TSCET, JEE MAINS, COMEDK, etc..
those are the entrance examinations for pursuing an undergraduate program i.e.b.tech .
you should score well and depending up on your marks and percentage, you will get admission in particular colleges regarding your rank.
make sure that, to pursue your desired branch i.e is mechanical in b.tech ,you should meet the requirements i.e your rank will decide every thing.
atleast a rank of 30,000 and below makes you to choose the desired branch.
and it may varies depending up on yearly cutoff's issued by respective boards.
To fulfill your passion to getting in desired branch, i mentioned every possible things in above.
after examination , if you are going for counselling process, opt mechanical engineering in the options mentioned over there.
based on the requirements, the admission will be given in to your desired stream.
or else, go for further counsellings.
The only thing you should do is you should get a good rank in any one of those entrance exams which are conducted.
so, practice well, study hard, sure you will get your desired branch.
by the way Mechanical is the evergreen branch many of the students are willing to take it.so you should be getting good rank inorder to get your desired branch
hope it helps for you,
thank you