Section 2(24)(x) of the Income-tax Act, 1961, includes within the definition of 'income' any sum received by an employer from his employees as contributions to any provident fund or superannuation fund or any fund set up under the Employees' State Insurance Act, 1948, or any other fund for the welfare of such employees. This provision is significant as it clarifies that such contributions, although collected by the employer, are considered income in the hands of the employer until they are deposited with the respective funds. The statutory test here is whether the employer has received such contributions, and the burden of proof lies on the employer to demonstrate compliance with timely deposit requirements. In practice, this section ensures that employers do not misuse employee contributions and mandates transparency and accountability in handling such funds.