law: Indian Evidence Act, 1872 
  5. Evidence may be given of facts in issue and relevant
  
  facts
  Evidence may be given
  
  in any suit or proceeding of the existence or non-existence of every fact in
  
  issue and of such other facts as are hereinafter declared to be relevant, and
  
  of no others.
  Explanation— This section shall not
  
  enable any person to give evidence of a fact which he is disentitled to prove
  
  by any provision of the law for the time being in force relating to Civil
  
  Procedure10
  Illustrations
  A is tried for the
  
  murder of B by beating him with a club with the intention of causing his death.
  At A’s trial the
  
  following facts are in issue:-
  A’s beating B with the
  
  club;
  A's causing B's death
  
  by such beating;
  A’s intention to cause
  
  B’s death.
  (b) A suitor does not
  
  bring with him, and have in readiness for production at the first hearing of
  
  the case, a bond on which he relies. This section does not enable him to
  
  produce the bond or prove its contents at a subsequent stage of he proceedings,
  
  otherwise than in accordance with the conditions prescribed by the Code of
  
  Civil Producer10