law: Payment of Wages Act, 1936
  6.
  
  Wages to be paid in current coin or currency notes
  All
  
  wages shall be in current coin or currency notes or in both:
  Provided
  
   that the employer may after obtaining
  
  the written authorisation of the employed person pay him the wages either by
  
  cheque or by crediting the wages in his bank account.