Hi Sujith,

Top engineering colleges for any branch in India are the IITs and top NITs. Admission into these is through the exam called JEE mains and Advanced. Though there are other colleges also, I suggest you should try of IITs and NITs first as they have quality education which is best in the country.

Here is a list of some of the top IITs and NITs in the country.

• IIT BOMBAY
  
• IIT MADRAS
• IIT DELHI
• IIT KANPUR
• IIT KHARAGPUR
• IIT GUWAHATI
• IIT ROORKEE
• NIT TRICHY
• NIT WARANGAL
• NIT JAIPUR
• NIT ALLAHABAD
• NIT ROURKELA
• NIT SURATKAL

HERE ARE SOME IMPORTANT LINKS FOR YOU:-

https://engineering.careers360.com/articles/how-prepare-for-jee-main
https://engineering.careers360.com/exams/jee-advanced
https://engineering.careers360.com/colleges/ranking/top-government-engineering-colleges-in-India

HOPE THIS HELPS.

ALL THE BEST. THANK YOU

Top mechanical engineering colleges in India with good placements are-

1. IIT madras

2. IIT Delhi 

3. IIT bombay

4. IIT kharagpur

5. IIT Kanpur 

6. IIT roorkee

7. IIT guwahati

8. NIT trichy

9. BITS pilani

10. VIT university

11. Jadavpur university 

hope this is helpful to you.