law: Air (Prevention and Control of Pollution) Act, 1981
  25. Power to Obtain Information.
  For
  
  the purposes of carrying out the functions entrusted to it, the State Board or
  
  any officer empowered by it in that behalf may call for any information
  
  (including information regarding the types of air pollutants emitted into the
  
  atmosphere and the level of the emission of such air pollutants) from the
  
  occupier or any other person carrying on any industry or operating any control
  
  equipment or industrial plant and for the purpose of verifying the correctness
  
  of such information, the State Board or such officer shall have the right to
  
  inspect the premises where such industry, control equipment or industrial plant
  
  is being carried on or operated.