Dear,
There are two Acts that will apply to you.
1. Contract Labour (Regulation and Abolition) Act, 1970
2. Building and Other Construction Workers (RE and CS) Act, 1996.
1. CLRA Act. - you had already obtained lincense; this means you have mentioned in form IV that your strength will be more than 20 on any working day (because for the strength less than 20, you need not take license). Now, you are required to maintain certain registers as specified in the Act. (Please refer the Act, I need not repeat the same here).
2. Secondly, you are also required to register yourself - whether you are principle employer or a contractor - under BOCW Act, 1996, if your strength of the workers is more than 10. There is a Form -I (am enclosing the format) which you need to fill and submit it with the government authority as per Section 7 of the Act. You are required to remit necessary fees as applicable as per the strength that you have shown in this FORM - I. Please check the Act.You are also required to inform commencement of your construction work in Form IV - after commencing the job.
Again, there are certain records need to be maintained in the Act.
Format of the registers need to be maintained as per both the above Acts are almost one and the same. In this case, you can write a letter to the appropriate government to seek permission to maintain 'Only one set of registers", so as to avoid duplication.
V. Balaji