Hello Ansha,
As per the instructions released by IIM Kozhikode, it says candidates should not wear any jewellery or materials containing metal, jackets and footwear in the examination hall. Also, candidates aren't supposed to wear clothes with pockets. I am sorry to inform you that wearing shawls is not permitted as they might tell you to remove it. For more details, refer to https://bschool.careers360.com/articles/cat-2019-dress-code
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