An IO filed filed charge sheet U/sec 173(2) , in which he presented a doctored statement (suppressed & manipulated) to that of the 161 statements of PWs. This act has been done to save an accused from legal punishment. Does this act attracts IPC sec 217 and 218? If so, then sanction from state u/sec 197crpc required to register FIR against the IO (S.I or C.I rank) or not?