Difference between works contract & manpower supply

James Franklin (IPCC Student) (39 Points)

06 April 2016  
our firm has a bagging & loading job work in particular fertilizer manufacturing company. service payment is not on the basis of No. of employees engaged but per ton ( for bagging & loading of fertilizer) . our employees are work in that company under our control & supervision. That company pays service payment on the basis oh how much tones of fertilizer bagged & loaded, and not pays esi & pf for the employees. we pay that esi & pf from our hand. Now under what head we have to charge service tax? whether supply of manpower or works contract? can any one clarify me pls... thanks in advance