Hello arjun

For the rank you have achieved in imucet you can get seat in government colleges in bsc nautical with the category you belong to. That is as you belong to open category you can expect your seat in few government colleges. As you have chance of getting seat in few colleges with nautical so choose the right college in which it has best placement, best ranking , faculty, management. For more information about the colleges and courses please go through the below link

https://www.careers360.com/college-predictor

All the best