The best engineering college in Mangalore is certainly NIT Surathkal.
The college requires JEE Main scores for admission.
The cutiffs fall within 25000 ranks and is certainly topnotch in terms of placements with 100%.

Average salary stands at 7LPa with maximum salary being 1.3Crores for CSE engineering.
The college has topnotch facilities and alumni connect. Has many accreditation under its feather.

More details shared below.

https://engineering.careers360.com/colleges/ranking/2017/top-engineering-colleges-in-mangalore