law: The Motor Vehicles Act, 1988
  203. Breath tests.
  
  Provided that no requirement 
  
  for breath test shall be made unless it is made as soon as reasonably 
  
  practicable after the commission of such offence.
  Provided that  a person  
  
  shall not  be required to provide such a specimen while  at a  hospital as  an 
  
  indoor patient if the registered medical practitioner  in immediate  charge of  
  
  his case  is not  first notified of  the proposal  to make  the requirement  or 
  
  objects to the provision of  a specimen  on the  ground that  its  provision  
  
  or  the requirement to  provide it  would be prejudicial to the proper care or 
  
  treatment of the patient.
  Explanation.--For the  
  
  purposes of  this section,  "breath test", means a  test for  the purpose  of  
  
  obtaining  an  indication  of  the presence of  alcohol in  a person's  blood 
  
  carried out, on one or more specimens of breath provided by that person, by 
  
  means of a device of a type approved  by the  Central  Government,  by  
  
  notification  in  the Official Gazette, for the purpose of such a test.