Dear Shruti,
Wearing uniform during working hours is subject to the following:
(1) There exists a uniform policy and it is, inter alia, mentioned that 'wearing uniform is mandatory' on all working days during working hours.
(2) the uniform is being provided by the company on FOC with washing allowance
(3) Penalty clause in case of violation of Uniform Policy
Normally, the Uniform policy is being strictly followed in companies where blue collar employees are engaged to create a feeling of similarity and belongingness and people follow the policy without any hussle. However, white collar employees, at times, deviate the policy where Personnel/ HR department issues verbal/written warning and advice the concerned to follow the policy. If the employees are provided with uniform by the company adequately with washing allowance, I don't see any reason not to wear the same and in case of any deviation by anybody on any occasion, it will not be considered as a misconduct. However, it varies from organization to organization according to its policy.
In absence of any policy/ free uniform, it is not mandatory on the part of employee to wear uniform.
Thanks,