Register trade union

You can approach a lawyer who specializes in labor laws to help you with the registration process ¹. They can guide you through the necessary documentation and formalities for registering your Trade Union with the Labour Commissioner in Mumbai. Additionally, you can visit the office of the Labour Commissioner in Mumbai to inquire about the process and requirements for registration. They may provide you with the necessary forms and guidance to complete the process. Here are some general steps to register a Trade Union ¹: - Fill out Form A to apply for registration - Submit the application to the Registrar of Trade Unions - Pay the required registration fee - Provide a list of union members and their details - Provide a copy of the union's rules and constitution - Submit any other required documents Please note that the specific requirements and process may vary depending on the state and local laws. It's best to consult with a lawyer or the Labour Commissioner's office for specific guidance.

You may have to look for an advocate or a consultant having expertise in this field in the geographical area you are looking for an assistance eithr one from this forum or outside. 

Search and engage a local lawyer.