@Rajiv , you be the judge and decide. I have a CA statement where in it is clearly mentioned that i paid you 50 lakhs.What will be your next question?
1) Can I ask for bringing ledger, pass book, cash book, ITR or anything such like papers of Relative-B?-> Yes you should.The mantle to proof that they have paid you will be on them.They need to proved that money indeed changed hands via a established mode bills/invoices/receipts/cheque
If yes, is it possible to put some application b4 the court so that judge does not brush aside the demand? -> You should counter saying that these are malicious and baseles allegations on you.
Or make some cross-questions in a way that this document loses its shine. -> Your have already eroded the shine but not confident enough.
2) It is a computer generated document which is bearing signatures and stamp of Relative –B who is also a CA. He has mentioned : date/Rs 3 lac given to Mr Husband. (Repeat, next date) -> They need to prove that you demanded dowry and they paid you via a mode which can be proved.
Normally in any well prepared ledger you will have host of information pertaining debit mode unless it is BLACK MONEY.
3) Is there some rule in IT-Act that money above XX amm has to be given in the form of CHK/Draft only. Being CAs they are manipulating the game. Though I am on safe sde to the larger extent, but I want to corner him to the end of wall. -> Answered above.
Let them know that you will file prejury cases on them for preparing a false CA sheet.