Hello Dhruv Arora. Thanks for contacting Careers360 and we hope we will be able to answer your query. 

Note that according to the official website for GUJCET:

• http://gujcet.gseb.org

the last date for filling, saving and submitting the application form ended on the 7th of April. 

I leave it to you to conclude whether you can apply for GUJCET now or not give that no late registrations will be entertained.