You can take admission in engineering colleges of MP itself, by giving the JEE mains. Since the  MP PET was discontinued, you can appear for GUJCET if you want admission in universities of Gujrat which offer engineering courses. Also please note that JEE mains is universally approved exam for taking admissison in any engineering college across India, apart from the prestigious institutes like IIT, NIT etc.

No, if you are aiming for admission into an engineering college in Gujarat, you generally won't be able to directly use your JEE Main score for admission unless it's a specific case. Most government and private engineering colleges in Gujarat require scores from the Gujarat Common Entrance Test (GUJCET) for admissions.

This national level exam is primarily for admission into NITs, IIITs and other Centrally Funded Technical Institutes (CFTIs) across India. While some private colleges in some states might consider JEE Main scores, it's not the norm in Gujarat.

This state-level entrance exam is conducted by the Gujarat State Board of Higher Education (GSHE) specifically for admission into engineering and pharmacy programs in Gujarat colleges (government and private).


https://engineering.careers360.com/download/ebooks/jee-main-2022-preparation-tips

I hope it helps!