Hello dear!

IMUCET is an entrance exam conducted by Indian Maritime University, a central university under the Ministry of Shipping, Govt. of India, recognized as the only university in the country imparting quality education in the maritime field. Indian Maritime University offers various undergraduate, postgraduate and doctoral programmes to the students every year. 

Whereas, CET stands for Common Entrance Test. Generally the states or universities that conduct CET add their abbreviation as a prefix, like Karnataka conducts KCET; Maharashtra conducts MHTCET. 

Therefore I would suggest you to write full names of an entrance exam while searching on google and registering. This way more precise results would be displayed to you.

I hope this was of helpful!