Yes, you can file an RTI to get bank account statements of all Gram panchayat accounts for last 5 or 10 years. Gram Panchayat which is a "Public Authority" as per Section 2 (h) of the RTI Act.
In the decision of the Central Information Commission in the case titled PS Sahoo vs CPIO, Andaman and Nicobar Administration, Pradhan Gram Panchayat bearing no. CIC/SM/A/2012/001632, it has been held that details of funds and schemes under the Gram Panchayat has to be disclosed the public at large under the RTI Act.
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/