Guidelines issued by the govt to prevent issuance of manipulated valuation certificate of backdate

You can wirte down the details in a white paper, affix proper stamp and send the letter under RTI act by registered post or even by email to the concerned PIO and await their reply

I would appreciate if the questionaire drafted  is proper 

You can engage the services of an advocate on the terms of the chosen advocate for availing such services viz., drafting or any other matter. 

Does she need to disclose her weath of jewellery worth Rs.7.5 lacs as per valuation certificate in her ITR for the year 2005-2006 . The valuation certificate is of Rs.7.5 lacs issued in the year 2005.

What are the facts? What is the context?

RTI Act is of no application in respect of private and personal information, evn if availble with Public Authorities. 

The ITR you are mentioning about pertains to the year 2005, which cannot be disputed now at this stage.

However without knowing the subject matter properly any advice rendered would be a misguidance.