You will need to have to grasp basics of design principles, user research, wireframing, prototyping and a design tool like Figma etc. Practicing small design projects could help you understand how and why a decision made for design can affect the end users experience and outcome. However, resources from FITA Academy (https://www.fita.in/) may provide good practical training and clear path for learning the same.
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UI UX Design Course in Mumbai (https://www.fita.in/ui-ux-design-course-in-mumbai/) | UI UX Course in Delhi (https://www.fita.in/ui-ux-course-in-delhi/)