Yes, you can file RTI but disclosing such information is upon the discretion of the concerned PIO as disclosing such information can impede the ongoing investigation which is an exemption under section 8(h) of the RTI Act.
You can seek information under section 2(f), (i), (j) and 6(1) of the RTI Act 2005.
Mrs. Vijay Bala v. Central Bureau of Investigation, Central Forensic Science Lab. in File No.CIC/SM/A/2011/001210
The Central Information Commission (CIC) observed that the reports submitted by the CFSL to the CBI are part of records of the CBI and are to be used for investigation/prosecution of various cases. By disclosing such reports under the Right to Information (RTI) Act, the CSFL can jeopardize and impede the process of investigation/prosecution of any case. The Commission advised the appellant to approach the CBI to seek copies of such reports and the CBI may consider giving him copies of the reports if the investigation and prosecution in the relevant case have already been completed and the entire legal process has come to an end. The appellant had also sought about the type and quantity of magnetic tape purchased by the laboratory in the month of June 2006. The respondent explained that such details might not be held by the laboratory. The Commission directed the PIO to look for the records and provide the copy of the purchase documents and if no such records exist, the appellant should be informed about its non- availability.
For further assistance to file RTI application to any PIO please refer Online RTI-File RTI Online to Any Govt. Office in 3 Steps(All 29 States) https://onlinerti.com/