On whom does the onus lie to prove all income sources of hus

In most cases wife his responsible to provide all the evidence. Wife has no right on husband's property as per current law. If wife is working or she is purposely not working but has good qualification then she may not get maintenance. There are a lot of judgements in which doctor wife even though not working doesn't get any maintenance.

onus is on the wife. v rarely court may use its discretionary powers to search documents............ i have not heard of such a case so far.......

@united families and @ mrs jayshree.....thank you both for your kind and valuable advise.

@Maxx,

The court has the right to ask you to produce all your income & property papers for which the wife only has to provide a list of a/c nos. etc. The husband can also ask the court for the same to establish wife's income if any. 

The onus is on wife to give the details of husbands income & properties.... the court can then direct the husband or banks to furnish further information.

Not only in matrimonial matters, in all the civil cases, the Indian Evidence Act says that a person, who has got exclusive knowledge, information and documents have to produce them.  What the other party has to do is simply to move an application to the court saying to call for such information from the opposite party.  In this case, husband has got exclusive knowledge that where he is working, how much salary he is earning, where he is saving and what are his expenses, how much ancestral property rights he have and the other sources of income.  The wife, who is bereft of this vital information has to resort to move the above said application and then the burden shifts on the husband to bring all those documents and also to file an affidavit to such extent, if the court orders.  Again I say this is not applicable just for matrimonial cases, in rent, service matters etc. such sort of applications lie from one party against the other party so that the court can adjudicate the matter effectively.