Counselling
You should go for Mar Athanasius College of Engineering, Kothamangalam as it has AAA+ rating which means good. It has good Infrastructure. It offers good placements, exposure and faculty.
You can also compare both the colleges from the given below link
Mar Athanasius College Ratings and Reviews
NSS College Ratings
Yes, you can go for 5th round of counselling in UPSEE but make sure you have done all the formalities that is you have to take provisional admission in the college which is alloted to you but don't freeze the college.
Good luck!!
No, there will be no cancellation of seat you have to go for upgrade in order to attend second round of counselling.
You can check your chances in AIIMS by using below college predictor
AIIMS College Predictor
Good Luck!!
You can check the closing rank of all the campuses from the given below link
AIIMS MBBS Cut Off
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