@underwaer: what is your source on 'tps application should reach by deadline'?
@phoolbari: as per the document I found, you should be fine if application is postmarked by deadline.

You would be better off consulting a professional but did not want Underwaer's comment to discourage last minute filers into making a decision to not file.
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Failure to Register .

8 CFR 244.17(c) states that “failure to register without good cause will result in the withdrawal of the alien’s Temporary Protected Status.” All re- registration applications postmarked after the filing deadline should be rejected. The contractor will forward copies of the rejected notices to USCIS for tracking. If the applicant does not resubmit his or her application with evidence of good cause for failing to re-register timely within 60 days, a notice of intent to withdraw TPS should be issued. That notice must provide the applicant 30 days to submit evidence of good cause for failure to register in accordance with 8 CFR 244.13(b).