Hi Shashikant Kumar Pathak,
Regarding your query about the mandatory rules for Pvt. Co. to provide HRA, FOT (Fixed Over Time), and OSA (Out Station Allowance), I would like to clarify that as a permanent employee of M/S Tarapore & Co. in Jamshedpur, every employee, whether permanent or temporary, is entitled to receive HRA, FOT, and other allowances. However, in your case, it seems that you are only receiving basic pay and DA to meet the minimum wage requirements.
If you believe that you should be receiving additional allowances as per the rules, I suggest reaching out to the labor department to inquire about the process for making a claim. They will be able to provide you with the necessary information and guidance on how to proceed.
Best regards