Hello Aspirant ,

Yes , choosing CUCET /CUET as an Backup option for JEE will be a very good Idea as you will have option to join some of the best colleges of India after qualifying CUCET such as Hindu college , Hansraj college etc .

Also having a backup option will reduce your stress and completely solve any last minute admission problems , also Some of the syllabus of CUCET(fir science courses) will be same as JEE but easier and it will be very easy for you to clear this exam .

Hope this helps.