law: Convert's Marriage Dissolution Act, 1866
  21. Proof of marriage and desertion or
  
  repudiation of petitioner in consequence of conversion
  At any stage of a suit instituted under this
  
  Act, cohabitation as man and wife shall be sufficient presumptive evidence of
  
  the marriage of the parties, and proof of the respondent's refusal or voluntary
  
  neglect to cohabit with the petitioner, after his or her change of religion and
  
  after knowledge thereof by the respondent, shall be sufficient evidence of the
  
  respondent's desertion or repudiation of the petitioner, and shall also be
  
  sufficient evidence that such desertion or repudiation was in consequence of
  
  the petitioner's change of religion, unless some other sufficient cause for
  
  such desertion or repudiation be proved by the respondent.