Your requirement could be seen as 'job/piece contract' and you as a Principal Employer has to look into your contractor who supplies these labourers, their obligations under CLRAAct.
Though you may not 'directly' pay them wages, but as a Principal Employer it's your duty to ensure their wages fulfil obligations under the Minimum Wages Act & Payment of Wages Act and EPF Act as well if applicable. If your contractor enlist 10 persons anytime in a year he is liable to comply with EPF formalities and contribute. The main contention is they are working within your premises which will tell you what to do.
22nd April 2019 From India, Bangalore
If the invoice of the contractor is not bifurcated to Material cost, Labor cost etc. , then the PF authority may charge PF on the entire invoice.
Always better to engage people through such contractors who are complying properly.
Thanks & Regds.,
S K Bandyopadhyay ( WB, HOWRAH)
+91 98310 81531
23rd April 2019 From India, New Delhi