In the response of RTI they have asked for extra payment to provide information, but they did not provide the details for the mode of payment and whom to address. In this case what I need to do? Do I need to file First Appeal?
The mode of payment of fees depends on the concerned public authority. According to the RTI Act rules, an applicant can make payment of fee in cash to the public authority or by demand draft or banker’s cheque or Indian Postal Order payable to the Accounts Officer of the public authority. The payment of fee to the Central Ministries/departments can also be made online through internet banking. The public authority should ensure that payment by any of the above modes is not denied or the applicant is not compelled to draw IPO etc. in the name of any officer other than the Accounts Officer.
You could approach the public authority and seek clarification or else you could simply write a letter asking for the mode of payment.