Colleges in Mangalore

Congratulations. You should definitely go for it. One of the best branches in NIT-K according to the placements.

1st years are supposed to stay in the hostel after 7:30 PM. 2nd year to 4th-year boys don't have a time limit.
Girls' Hostel block time is different. All girls should enter hostel within 11 PM. For any exceptions, you need to take prior permission. As such, there is no particular timetable in the hostel, but time for breakfast, lunch, snacks, and dinner is fixed by the mess.

NITTE University is a recognised one. It has been ranked 77th in NIRF 2018 data (National Institutional Ranking Framework). It was ranked among 100 education institutions. It has A grade accreditation. University has its eight institute and teach all the professional and technical courses. According to the data they offer placements however, recruiters are not listed by them. It's all your decision. All the best. Thank you.

Depends on your rank in JEE Mains. Check this link for cut-offs in NIT-K (Surathkal):
https://www.shiksha.com/college/national-institute-of-technology-surathkal-mangalore-24187/admission#admission

CET rank doesn't matter for NIT-K admission. Only JEE Mains rank matters.
Check the below link for cut-offs:
https://www.shiksha.com/college/national-institute-of-technology-surathkal-mangalore-24187/admission#admission

NIT surathkal is best for Mechanical Engineering.

No, there are no evening colleges available in Bangalore for M.Phil programme in English literature.

Your mode of application will be online but you will have to come to India for writing the entrance exam as there are no exam centres for COMEDK outside India. Since you're Indian by birth, all your processes will be conducted as an Indian student. For example, your fees will be the same as Indian students and will be calculated in INR. The most important thing which will treat you as normal Indian student is if you have an Indian Birth Certificate. Also, follow the link below for further details:
https://www.comedk.org/

https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor
This is the college predictor link I am sharing here. To know about the colleges you can get, go to the link.
Good luck.

For mining branch, the on-campus placements are very low, it's less than 30% and even low for the batches I saw. None of my friends from Mining department got placed in the campus and many of them have pointer 8.5+. Later, they got jobs through off-campus placements, that's a different story.