What do you mean by Workers Committee?
In India, the Industrial Disputes Act provides for forming a Works Committee in every establishment employing 100 or more workers. It is constituted by the employer as per the direction from the government. It shall consist of such a number of members selected equally from the management side and the workers' side. If there is any registered trade union, the selection of workers should be in consultation with the Union.
Please remember that a Works Committee is not formed automatically once your employment strength exceeds 100, but it is formed as directed by the government by an ordinary or special order. At the same time, you can also form a Committee of workers and management to take care of the smooth working of the organization. However, that committee will not be a statutory committee as per Section 3 of the ID Act.