Mechanical Engineering

I think, it is difficult, because the students with the rank below 5000 are eligible to get admission into these colleges.

No, Mechanical Engineering is not a tough course. If you study daily for 1 hour, you can do it. Only you have to focus on Mechanics, M1, M2, M3.

Yes, you can definitely prepare for an American university within one year. You have to study hard. Best of luck for your future and if any query, feel free to ask.

Check out the link below:
https://www.shiksha.com/engineering/colleges/colleges-Mumbai-all

Here is the top 10 engineering colleges in Pune:
1-College of Engineering, Pune
2-Bharati Vidyapeeth Deemed University College of Engineering, Pune
3-Maharashtra Institute of Technology, Pune
4-MIT College of Engineering, Pun
5-Vishwakarma Institute of Technology, Pune
6-MKSSSs Cummins College of Engineering for Women, Pune
7-Pune Institute of Computer Technology, Pune
8-Vishwakarma Institute of Information Technology, Pune
9-AISSMS College of Engineering, Pune
10-Pune Vidyarthi Grihas College of Engineering and Technology, Pune.

It is 1.59 lakhs total fees, details below:
https://www.shiksha.com/b-tech/course/b-tech-lateral-coimbatore-institute-of-technology-283804