1. In which of the cases do a husband need to declare his savings and assets (property etc..) on an affidavit in Court? Is it during maintenance / DV / Divorce / 498a case?
The husband need not make an affidavit on any of the issues referred to in the above question. Who told you to make an affidavit?, is it your guess or a hearsay instruction? The law or the provisions of the referred acts do not ask you to swear an affidavit to declare your income or assets, it is your misunderstanding.
2. 2. Is wife eligible for any share in property of husband or father-in-law or mother-in-law? She is not eligible to claim a share in the husband's property during his life time hence she cannot stake claim in her in-laws property too. Dont worry about which is not available in the present situation.
3. 3. If a husband buys a property with his savings on his mother’s name after marriage then does the wife has any claim on this property? Or does the husband need to inform court that he had bought a property with his money but on mother’s name?
Not necessary. A person is not required to inform each every activity of his to the court just because there is a case pending in the court.
To your further queries:
1. Is affidavit is required at the start of maintenance case? My understanding was that it is only needed in divorce case to decide permanent alimony by court.?
The affidavit is not required in the maintenance case or in the divorce case too. Let she prove it to claim.
2. How much does the court gives to submit affidavit after its Is asked for?
In case of affidavit under maintenance case what does one need to declare:
3. Earning/salary from job after marriage or total earning since start of job (before marriage also)
4. Savings after marriage or total savings in life time?
5. What are the crtical details of an affidavit? Can anybody share a particular samply affidavit?
6. If a husband transfers his savings to his father and mother after marriage but before before affidavit then do he still need to show it in affidavit?
Answers to all subsequent questions is the same as to the first question.
Dont keep worrying about unnecessary issues which are not required by law. Have you engaged a lawyer, then what is his/her opinion?