Under the RTI Act 2005, there's no limit to the number of queries you can ask in a single application. The Public Information Officer (PIO) typically has 30 days to respond. If you don't receive a reply within this timeframe, you can file a first appeal with the designated First Appellate Authority (FAA), usually within 60 days of the application's receipt. Appeals can often be filed via email, especially during disruptions like lockdowns, with hard copies submitted later.