law: Foreign Contribution (Regulation) Act, 1976
  9. Restrictions on acceptance of foreign
  
  hospitality
  No member of a Legislature, office-bearer of a
  
  political party, 1[Judge,]government servant or employee of any corporation
  
  shall, while visiting -any country or territory outside India, accept, except
  
  with the prior permission of the Central Government, any foreign hospitality:
  PROVIDED that it shall not be necessary to
  
  obtain any such permission for an emergent medical aid needed on account of
  
  sudden illness contracted during a visit outside India, but, where such foreign
  
  hospitality has been received, the person receiving such hospitality shall
  
  give, within one month from the date of receipt of such hospitality, an
  
  intimation to the Central Government as to the receipt of such hospitality and
  
  the source from which, and the manner in which, such hospitality was received
  
  by him.