law: Indian Trusts Act, 1882 
  89. Advantage gained by exercise of undue influence 
  Where, by the exercise of undue influence, any advantage is
  
  gained in derogation of the interests of another, the person gaining such
  
  advantage without consideration, or with notice that such influence has been
  
  exercised, must hold the advantage for the benefit of the person whose
  
  interests have been so prejudiced.