Colleges in Mangalore

Yes, you can. Eligibility for MBA is any graduate with minimum 50% marks; that's it for most of the colleges.
But some colleges that provide PGDM will check your record. They may not give you admission for PGDM but you can get admission for MBA where admission takes place directly on the basis of your entrance test performance.

https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor
Please go to the college predictor link I have shared here to know about the college you can get.
good luck

KCET 2018 College Predictor
Use your KCET 2018 rank to see where you can get admission at the link provided below:
See the courses, colleges & rounds you may crack
The result is based on admissions data of KCET 2017
Get resources & insights on colleges & courses
https://www.shiksha.com/b-tech/resources/kcet-college-predictor.

NIT do not have lateral entry system. In NIT, Diploma is considered as equivalent to class 12th, if you want to get admission in NIT, you have to appear in JEE Mains and score a good rank.

NIT do not have lateral entry system. Diploma is considered equivalent to class 12th in NIT, so you have to appear in JEE Mains to get admission in NIT. If you score good rank, then you will get admission there.

It depends on your all India rank. If you have received your rank, check the link below and compare with last year's cut-offs for NITK:
https://www.shiksha.com/college/national-institute-of-technology-surathkal-Bangalore-24187/admission#admission

No, it's not true. There might be a chance to get admission only if the seat is vacant.

No, there is no entrance examination for B.Sc Fashion Designing. On the basis of your percentage, you will get admission. Best of luck for your future and if there is any query, feel free to ask.

Fee structure of MITE College, Mangalore for B.Tech CSE is mentioned below:
1) Yearly Fee: 55000 INR
2) Program Total: 2.2 Lakhs INR (Tuition Component)
Regards.