I am afraid that you have not addressed the application to the real custodian of information and the application might have lacked clarity.
The application has to be made to the custodian of that information, and that information should be available in the material form with that authority.
Even if that information is not available, the PIO has to transfer the RTI Application to the Custodian of the information under Sec. 6 (3)
So go for the first appeal as follows:
First Appeal dt.15th Jan, 2022 under RTI Act
Before: First Appellate Authority,..................
Against: CPIO, Dept of. Expenditure............
Appellant:.........................
Brief facts: Applicant has solicited information vide his application dt.............and the
Grounds for Appeal: The rejection is legally improper as CPIO is bound to transfer the application to that custodian of that information's CPIO under Sec. 6 (3).
Prayer: Appellant prays for directions to CPIO for transfer of the rti application under Sec. 6 (3)
Appellant.
____________________________
with due apologies to Shri KVKS that proposition that rejection is correct is unknown in RTI Act.
The Govt is accountable to the public. Accountability and transparency are the objectives of RTI Act.
"larger public interest" is an exemption to all exemptions stated in Sec. 8 (1). That means even when information is exempted if there is a larger public interest, information must be provided overlooking all the exemptions
The full bench CIC decided that 'no larger public interest" can never be the reason for the denial of information. the decision is available with more explanation in CIC website-Full bench decisions..