sec 313 of crpc

Dear client, the accused can file documents and a written statement under Section 313. And according to Section 315 of the Criminal Procedure Code of 1973 (CrPC), an accused can be a competent witness for the defence, and he, like any other witness, has the right to give evidence under oath.
The accused cannot be cross examined regarding the statements under sec 313.

Dear Client,
Under Order VIII Rule 9, the Court has the power to call upon both parties to file written statements at any time and this power should be freely used for elucidating the pleas when necessary, especially in complicated cases. The statement of the accused can be used to test the veracity of the exculpatory of the admission, if any, made by the accused. It can be taken into consideration in any inquiry or trial but still, it is not strictly evidence in the case. No provision in the Cr.. PC grants any right to the accused to file any material or document at the stage of framing of charge. As per Sub-Sec. 5 of Sec. 313 Cr. P.C, the Court may take the help of the Prosecutor and Defence counsel in preparing relevant questions which are to be put to the accused and the Court may permit the filing of a written statement by the accused as sufficient compliance of the section.