Your last question in this thread surfaced only because you haven't gone through the attached document's content. The answer of your question lies in the content under the heading "Method of seeking information".
I strongly advise you go through the content of the whole attached documents.The more you read,the more you will be able to understand RTI.
One more thing i want to add "If you want to have an inspection of the records which in under the power for public authority, for the first one hour,you don't need to pay any fee"
For more information don't forget to visit https://www.rti.gov.in
Hope that helps