law: Marine Insurance Act, 1963 
  62. Notice of abandonment 
  (1) Subject to the
  
  provisions of this section, where the assured elects to abandon the subject-matter
  
  insured to the insurer, he must give notice of abandonment. If he fails to do
  
  so the loss can only be treated as a partial loss.
  (2) Notice of
  
  abandonment may be given in writing, or by word of mouth, or partly in writing
  
  and partly by word of mouth, and may be given in any terms which indicate the
  
  intention of the assured to abandon his insured interest in the subject-matter
  
  insured unconditionally to the insurer.
  (3) Notice of
  
  abandonment must be given with reasonable diligence after the receipt of
  
  reliable information of the loss, but where the information is of a doubtful
  
  character the assured is entitled to a reasonable time to make enquiry.
  (4) Where notice of
  
  abandonment is properly given, the rights of the assured are not prejudiced by
  
  the fact that the insurer refuses to accept the abandonment.
  (5) The acceptance of
  
  an abandonment may be either express or implied from the conduct of the
  
  insurer. The mere silence of the insurer after notice is not an acceptance.
  (6) Where notice of abandonment
  
  is accepted the abandonment is irrevocable. The acceptance of the notice
  
  conclusively admits liability for the loss and the sufficiency of the notice.
  (7) Notice of
  
  abandonment is unnecessary where at the time when the assured receives information
  
  of the loss, there would be no possibility of benefit to the insurer if notice
  
  were given to him.
  (8) Notice of
  
  abandonment may be waived by the insurer.
  (9) Where an insurer
  
  has reinsured his risk, no notice or abandonment need be given by him.