Dear Dev ji,Firstly in your question you have not given full details i.e under what circumastances your company has to reduces the basics.Second while changing the timings and weekly offs of the employee have to obtain permission from the competant person as per Shops & Estb Act or Factories Act , have you done that ?Thirdly is there any understanding between employee and employer in what conditions the basic wages reduces ?Forth, According the PF / ESI act you should not reduces the Basic / DA etc. ( PF/ESI ceeling limites keep it in mind) Regards,PBS KUMAR