Hi Sonar,
There are various colleges in Gujrat that offers a diploma in fashion design. They are -
You can click on the name to get more information about the institute.
You may also visit https://design.careers360.com/colleges/list-of-animation-fashion-colleges-in-India?f%5B0%5D=sm_college_course_level%3ADiploma&f%5B1%5D=sm_college_state%3AGujarat&f%5B2%5D=sm_course_offered%3AFashion%20Design to explore colleges.
Hope this informationwas helpful for you.
All the best.
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