There is no legal infirmity by directing you to approach the concerned authority for obtaining the information from the authority concerned provided if you had not approached the proper authority.
If you are still aggrieved over the reply you always can prefer a first appeal agaisnt this reply.
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2. You can ask the desired information from the said authorities by submitting an application under the provisions of RTI Act itself instead of approaching them physically or directly.
3. See the above answer.
4. The first answer above anser this question too.
5. No comments