It is not clear from your question as to whether the cheque did not bear the signature of any person at all (including that of the issuing authority) or it contained the signature of some one other than the issuing authority.
Likewise, though you have mentioned that the bank had informed you that the cheque had bounced, but the reason is not mentioned in your question; however, from the heading of your question, it appears that the reason given may perhaps have been “13-Drawer’s signature required”. Please confirm it.
In either case, it is advisable for you to give a 15 days’ time period to the concerned authority to make the amount, as required under clause (c) of the Proviso to Section 138 of the Negotiable Instruments Act, and a 3 days’ notice given by you may not be sufficient if you are required to file the case at a later stage. Moreover, you have sent the notice by email; it may not be sufficient. You should send the notice by registered post so that you get proof of delivery of the notice in court at a later stage, if needed.
Please read the provisions of Section 138 carefully or take help of some local lawyer so that you take the correct legal action as per the legal provisions.
Since the cheque issuing authority is a Government authority, I feel that the “missing signature” on the cheque may be by mistake and also that on a proper notice being sent the authority would perhaps make the payment this time.
In the worst scenario, if the payment is not made even after notice and if you act according to the provisions of Section 138, I am of the considered opinion that an offence may be made out under that section in the facts mentioned by you, provided of course that other conditions in Section 138 are satisfied, i.e., of sending the notice and the non-payment by the issuing authority.
Dr. Ashok Dhamija is a New Delhi based Supreme Court Advocate and author of law books. Read more about him by clicking here. List of his Forum Replies. List of his other articles. List of his Quora Answers. List of his YouTube Videos.