Yes. Article 6 of Qatar's Labour Law directly addresses this situation. If your employer (the main contractor) entrusts part or all of their work to a subcontractor or any other natural or legal person, that subcontracting arrangement cannot be used to give you fewer rights than those enjoyed by workers employed directly on the same project or job.
In practice, this means subcontracted workers must be treated equally in terms of rights and privileges compared to directly employed workers doing equivalent work. This is an important protection, as subcontracting arrangements are very common in Qatar's construction, oil and gas, and facilities management sectors.
If you believe you are being given inferior pay, benefits, or working conditions compared to direct employees doing the same job, you have the right to raise this with the Ministry of Labour. Keep records of your work, your contract, and any communications with your employer, as these will support your case if you need to file a formal complaint.
This is general legal information, not legal advice. For advice on your specific situation, consult a lawyer licensed in Qatar.