Can rti inform recently received not pleaded in plaint can be produced during arguments of ia?

You can file a petition to receive additional documents with reasons for delay in filing them and once the petition is allowed, then you present your arguments by including the additional Documents too.

Yes,additional documents if they have relevance with case can be submitted with leave of court.

Dear sirs, these rti information is about defendant issued by govt. statutory authorities and has relevance is case...

so I can submit as these additional documents has relavenve to the case as reasons in my IA and proper adjucation and

  ....these rti information which is just received... so it is okay if not pleaded and not marked in list of documents in plaint correct ?. Please clarify. Thank you.

Additional documents  can be submitted  even at the stage of final arguments subject to that documents  must have relevance and essential for proper adjudication of  matter also party has to show the sufficient cause and explain delay in submitting  documents. 

Before arguments on application under Order XXXIX Rule 1 & 2 CPC you must submit all such documents with an application under Order VII Rule 14 read with Order XIII Rule 1 CPC explaining that these documents were not in power and possession of the applicant / plaintiff at the time of institution of suit, which have now been procured / received.

Thank you all 

The documents so obtained from reliable source at this stage can be filed before the court with the leave of the court  convincing the court about the relevancy of the documents to the case pending before court. 

whether thi document was available to you at the tie of palint or obtained later?

Dear sir , yes rti information is made available to me after filing of plaint.  Was not available when suit was filed.